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# co

abbreviation (Co.); prefix (co-)

«co» in the English dictionary: everyday and in Jewish tradition — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Co. is short for «company», often in business names, like «Smith & Co.». [tree →](https://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://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://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://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://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#m5)

### 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://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x1)
- My granny lives in Co. Galway in Ireland. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x2)
- The co-pilot helps fly the plane. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x3)
- The book has two co-authors. [tree →](https://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://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x5)
- Send the letter c/o Mrs Brown. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/#x6)
- Longman & Co. to be published. [tree →](https://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 Jewish tradition

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

- FRANK & CO., PUBLISHERS AND PRINTERS, (Sefer Yetzirah, Kalisch 1877) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/C/co/#x1)
- Meroz has argued that the SY envisions Wisdom \[חָכְמָה Chochmah\] as a co-participant with God in the Work of Creation. (Sefer Yetzirah, Sefaria community translation) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/C/co/#x2)

### 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).

## On Mova

- [Trees and pragmatics of «co» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/co/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«co» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/co.html) on Mova free.
- [Trees and pragmatics of «co» in the Judaism dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/C/co/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«co» in the Judaism dictionary](https://mova.elamur.ai/free/en/dictionaries/judaism/w/co.html) on Mova free.