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# co

«co» in Mova's school dictionary: **Co** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

abbreviation (Co.); prefix (co-)

### meaning for a pupil

1) Co. is short for «company», often in business names, like «Smith & Co.». [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m1)

2) Co. is short for «county» in Ireland, as in «Co. Cork». [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m2)

3) Co- at the start of a word means together or jointly, as in co-pilot, co-worker, cooperate. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m3)

4) c/o (care of) on letters means «at the address of». [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m4)

5) CO is the chemical formula for carbon monoxide, a dangerous gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m5)

### sense in the lessons

It is a fragment, not a full word. On shop signs «& Co.» means «and partners». In Ireland, «Co. Kerry» is a county. In science, CO (carbon monoxide) is a poisonous gas with no smell; homes have CO alarms for safety. Phrases: and Co., Co. Dublin, co-pilot, co-author.

### examples

- The bakery is called Jones & Co. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x1)
- My granny lives in Co. Galway in Ireland. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x2)
- The co-pilot helps fly the plane. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x3)
- The book has two co-authors. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x4)
- We have a CO alarm in the kitchen to warn us of carbon monoxide. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x5)
- Send the letter c/o Mrs Brown. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x6)
- Longman & Co. to be published. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x7)

### note

An abbreviation and a prefix, not a word on its own. «Co.» (company or county) has a full stop in UK style. CO in capitals is carbon monoxide; «Co» with a small o is the element cobalt. «Co-» can be written with or without a hyphen (co-operate, cooperate).

### In the corpora

- [«Ancient», «conscience» and «conscious» spell a /sh/ sound with ci or sci.](https://md.mova.elamur.ai/free/en/corpora/school/english/14-words-to-know-years-5-6/25/)

### Trees and pragmatics

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