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# propeller

«propeller» in Mova's school dictionary: **a set of blades that spin around to push a boat, ship or…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (a propeller, propellers)

### meaning for a pupil

A propeller is a set of blades that spin around to push a boat, ship or aircraft forward. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#m1)

### sense in the lessons

Science (forces): a propeller pushes air or water backwards, so the boat or plane is pushed forwards. Design and technology: children make propeller cars or paper spinners. Safety: never go near a spinning propeller of a boat or drone. Phrases: a ship's propeller, propeller blades, propeller plane.

### examples

- The boat's propeller churned up the water. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x1)
- Old planes had a propeller at the front. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x2)
- We made a car with an elastic-band propeller. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x3)
- Keep your hands away from the drone's propellers. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x4)
- The propeller started to spin faster and faster. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x5)
- A ship's propeller is under the water at the back. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/#x6)

### note

Spelling: two l's — propeller (also «propellor», rare). It comes from «propel» (to push forward). A helicopter's big blades are usually called «rotors», not propellers.

### Trees and pragmatics

[Every meaning and example of «propeller» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/P/propeller/), each sentence with its dependency tree and frames.