--- title: O — The school dictionary with trees and pragmatics description: The 416 words of the school dictionary under O, every meaning for a pupil and every example with its dependency tree and pragmatics. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/dictionaries/school/O/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [dictionaries](https://md.mova.elamur.ai/free/en/corpora/dictionaries/) / [school dictionary](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/) / O # O — The school dictionary The words of the school dictionary under O: 416 words, every meaning and example parsed by Mova with its syntax tree and pragmatics. [A](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/) · [B](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/B/) · [C](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/) · [D](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/) · [E](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/) · [F](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/) · [G](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/) · [H](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/) · [I](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/I/) · [J](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/J/) · [K](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/) · [L](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/L/) · [M](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/M/) · [N](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/) · [O](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/) · [P](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/) · [Q](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/Q/) · [R](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/R/) · [S](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/) · [T](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/) · [U](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/) · [V](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/) · [W](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/W/) · [X](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/X/) · [Y](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/Y/) · [Z](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/Z/) **1** [2](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/2/) [3](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/3/) [4](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/4/) [5](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/5/) - [oaf](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oaf/) — A clumsy or stupid person who is awkward and slow. — 4 sentences - [oak](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oak/) — An oak is a big tree with hard wood that can live for hundreds of years. Its nuts are called acorns. — 12 sentences - [oaken](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oaken/) — Made of oak wood. — 4 sentences - [oar](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oar/) — An oar is a long pole with a flat blade at one end, used to row a boat. — 10 sentences - [oas](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oas/) — OAS: the Organization of American States, a group of countries in North, Central and South America that work together. — 8 sentences - [oasis](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oasis/) — A place in a desert where there is water, so plants and trees such as date palms can grow. — 8 sentences - [oat](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oat/) — A kind of cereal plant grown for its grain. — 9 sentences - [oath](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oath/) — An oath is a serious promise, often in front of others or in a court, that you will tell the truth or do something. — 10 sentences - [oatmeal](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oatmeal/) — Oats that have been crushed or ground, used to make porridge, oatcakes and biscuits. — 10 sentences - [obedience](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obedience/) — Doing what you are told by someone in charge, or following rules and laws. — 10 sentences - [obedient](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obedient/) — Doing what you are told by a parent, teacher, rule or owner. — 10 sentences - [obeisance](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obeisance/) — A low bow or other sign of respect to someone important. — 4 sentences - [oberon](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oberon/) — The king of the fairies in old European folklore and stories. — 7 sentences - [obesity](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obesity/) — The condition of having much more body fat than is healthy, which can lead to illnesses such as diabetes and heart disease. — 8 sentences - [obey](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obey/) — To do what a person, rule or law tells you to do. — 9 sentences - [obituary](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obituary/) — A piece of writing in a newspaper or website, after someone has died, telling about their life and what they did. — 8 sentences - [object](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/object/) — An object (OB-ject) is a thing you can see and touch that is not alive. — 12 sentences - [objection](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/objection/) — An objection is a reason you give for not agreeing with something or not liking a plan. — 14 sentences - [objectionable](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/objectionable/) — Unpleasant or offensive, so that people object to it. — 7 sentences - [objective](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/objective/) — An aim or goal you are trying to reach (the lesson objective). — 11 sentences - [obligation](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obligation/) — An obligation is something you must do because a rule, a promise or your duty says so. — 12 sentences - [obligatorily](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obligatorily/) — Because a rule or law says you must; in a way that is required, not a choice. — 7 sentences - [obligatory](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obligatory/) — Obligatory means something you must do because a rule or law says so; it is not a free choice. — 9 sentences - [oblige](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oblige/) — To oblige someone means to force them to do something by law, a rule or duty. — 10 sentences - [obliged](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obliged/) — Obliged means having to do something because of a rule, law or duty. — 11 sentences - [oblique](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oblique/) — Oblique means slanting, not straight up and not flat; at an angle. — 14 sentences - [obliterated](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obliterated/) — Destroyed completely so that nothing is left. — 12 sentences - [oblivion](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oblivion/) — The state of being completely forgotten: the old song fell into oblivion. — 10 sentences - [oboe](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oboe/) — An oboe is a woodwind musical instrument shaped like a long thin tube, played by blowing through a double reed, which makes a clear, sligh… — 8 sentences - [oboist](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oboist/) — A person who plays the oboe, a woodwind instrument with a double reed. — 7 sentences - [obscene](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obscene/) — Obscene means very rude and shocking, especially about sex or the body, and not acceptable in public. — 8 sentences - [obscenity](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obscenity/) — A very rude or offensive word, especially a swear word. — 9 sentences - [obscure](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obscure/) — Not well known (an obscure singer, an obscure village). — 12 sentences - [obscurity](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obscurity/) — The state of being hidden, unknown or unclear. — 5 sentences - [observable](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observable/) — Observable means able to be seen or noticed. — 8 sentences - [observance](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observance/) — Following or obeying a law, rule or custom: «observance of the rules». — 10 sentences - [observation](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observation/) — Observation is watching something carefully to learn about it. — 13 sentences - [observatory](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observatory/) — An observatory is a building with big telescopes and instruments for watching and studying stars, planets and space. — 8 sentences - [observe](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observe/) — To observe is to watch something carefully to learn about it. — 14 sentences - [observed](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observed/) — Watched or looked at carefully, often to learn something. — 12 sentences - [observer](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/observer/) — A person who watches something carefully, often to learn or to report. — 9 sentences - [obsessed](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obsessed/) — Thinking about something or someone all the time, so it fills your mind. — 10 sentences - [obsidian](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obsidian/) — Obsidian is a hard, shiny black (or dark) natural glass that forms when lava from a volcano cools very quickly. — 8 sentences - [obsolete](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obsolete/) — Obsolete means no longer used because something newer or better has replaced it. — 10 sentences - [obstacle](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obstacle/) — Something in your way that stops you or makes it hard to go forward. — 10 sentences - [obstinacy](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obstinacy/) — The state of refusing to change your mind or give in, even when you should. — 4 sentences - [obstinate](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obstinate/) — Stubborn; refusing to change your mind or to do as you are told. — 4 sentences - [obstruct](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obstruct/) — To block a road, path, pipe or opening so things cannot pass. — 10 sentences - [obstruction](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obstruction/) — An obstruction is something that blocks a road, path, pipe or passage so that things cannot get through. — 11 sentences - [obtain](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obtain/) — To get something, especially by effort or by asking. — 9 sentences - [obtainable](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obtainable/) — Obtainable means able to be got or bought. — 10 sentences - [obtuseness](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obtuseness/) — Slowness to understand things; not noticing what is obvious. — 9 sentences - [obviate](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obviate/) — To remove a need or a problem, so that something is no longer necessary, as in "This obviates the need for…". — 7 sentences - [obviating](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obviating/) — Removing a need or problem, so that something is no longer necessary. — 7 sentences - [obvious](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obvious/) — Easy to see, notice or understand; clear to everyone. — 8 sentences - [obviously](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/obviously/) — In a way that is easy to see or understand; clearly. — 11 sentences - [occasion](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occasion/) — A particular time when something happens (on this occasion). — 12 sentences - [occasional](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occasional/) — Occasional means happening sometimes, but not often or regularly. — 9 sentences - [occasionally](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occasionally/) — Occasionally means sometimes, but not often or regularly. — 9 sentences - [occasions](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occasions/) — Times when something happens: «on three occasions» means three times. — 11 sentences - [occident](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occident/) — The Occident is the Western part of the world, meaning Europe and the countries settled from it. — 5 sentences - [occlusion](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occlusion/) — A blocking or closing of a tube, pipe or blood vessel. — 10 sentences - [occupant](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occupant/) — An occupant is a person who lives in a house or flat, or who is in a room, seat or car at a certain time. — 9 sentences - [occupation](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occupation/) — An occupation is a job or the kind of work a person does. — 13 sentences - [occupational](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occupational/) — To do with a person's job or work. — 8 sentences - [occupied](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occupied/) — Being used by someone, not free (the toilet is occupied, an occupied seat). — 13 sentences - [occupy](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occupy/) — To live in or use a building, room or space. — 12 sentences - [occur](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occur/) — To happen, especially without being planned. — 9 sentences - [occurrence](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/occurrence/) — Something that happens; an event. — 10 sentences - [ocean](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ocean/) — The huge body of salt water that covers most of the Earth. — 11 sentences - [oceanic](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oceanic/) — To do with the ocean or living in the ocean. — 9 sentences - [ocelot](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ocelot/) — An ocelot is a wild cat about twice the size of a pet cat, with spotted and striped fur, living in the forests of Central and South America. — 7 sentences - [oct](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oct/) — Oct. — short for October, the tenth month. — 8 sentences - [october](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/october/) — October is the tenth month of the year. It has 31 days and comes after September and before November. — 10 sentences - [octopod](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/octopod/) — An animal with eight arms or legs, especially an octopus. — 8 sentences - [octopus](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/octopus/) — A sea animal with a soft, round body and eight long arms covered in suckers. — 8 sentences - [odd](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odd/) — An odd number cannot be split into two equal whole groups, like 1, 3, 5 or 7. — 15 sentences - [oddball](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oddball/) — A person who behaves in a strange or unusual way. — 8 sentences - [oddity](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oddity/) — A strange or unusual person, thing or event. — 9 sentences - [oddly](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oddly/) — Oddly means in a strange or unusual way. — 9 sentences - [ode](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/ode/) — A poem that praises or speaks to someone or something, often in a grand, serious style. — 8 sentences - [odious](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odious/) — Odious means very unpleasant, hateful, so that people cannot bear it. — 5 sentences - [odor](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odor/) — An odor is a smell, especially a strong or pleasant one. — 5 sentences - [odorous](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odorous/) — Odorous means having a smell, usually a pleasant or strong one. — 5 sentences - [odour](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odour/) — An odour is a smell, often an unpleasant one. — 10 sentences - [odourless](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odourless/) — Odourless means having no smell at all. — 10 sentences - [odyssey](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/odyssey/) — A long, exciting journey full of adventures and difficulties. — 8 sentences - [oesophagus](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/oesophagus/) — The oesophagus is the muscular tube that carries food and drink from your mouth and throat down to your stomach. — 8 sentences - [of](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/of/) — Of links a part to the whole it belongs to: a piece of cake, 3 of the apples. — 21 sentences - [off](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/off/) — Off means away from a surface or from a place: take it off the table. — 23 sentences - [offence](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offence/) — An offence is a crime or an act that breaks a law or rule. — 12 sentences - [offend](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offend/) — To make someone upset, hurt or annoyed by what you say or do. — 10 sentences - [offended](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offended/) — Feeling hurt, upset or insulted by what someone said or did. — 10 sentences - [offender](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offender/) — A person who has broken the law or done a crime. — 9 sentences - [offending](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offending/) — Offending means upsetting someone or making them feel hurt or insulted. — 9 sentences - [offense](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offense/) — An offense is a wrong that someone does, a bad action or a crime. — 6 sentences - [offensive](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offensive/) — Rude or insulting, likely to upset people. — 11 sentences - [offensiveness](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offensiveness/) — Offensiveness is the quality of being rude or hurtful, so that it upsets or insults people. — 8 sentences - [offer](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offer/) — To offer is to say you will give something to someone, or to hold it out for them to take. — 14 sentences - [offering](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/offering/) — An offering is something you give, especially as a gift. — 12 sentences **1** [2](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/2/) [3](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/3/) [4](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/4/) [5](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/O/page/5/) - ← previous: [N](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/N/) - next →: [P](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/) - ↑ back to [The school dictionary](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/)