Co

/kəʊ/ name, noun, pron, verb, slang

name, noun, pron, verb, slang ·Common ·High school level

Meaning at a glance

  • Primary sense: Abbreviation of county.
  • Grammar: co is listed as name, noun, pron, verb, slang.
  • Nearest alternatives: aide, atomic number 27, brass, brigadier.
  • Useful contrasts: auto-.
  • Usage evidence: I wonder if it would be possible for you to introduce me to Mr Harrison of PC Interactive Co. Ltd?

How to use "co"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "co" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "co" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "co" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "co" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "co" is acting as name, noun, pron, verb, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "aide" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "co", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    Abbreviation of county. abbreviation, alt-of
  2. 2
    Clipping of company. abbreviation, alt-of, clipping, colloquial
  3. 3
    Abbreviation of company, alternative form of Co.. abbreviation, alt-of, uncountable
  4. 4
    one who refuses to serve in the armed forces on grounds of conscience wordnet
  5. 5
    Initialism of commanding officer. abbreviation, alt-of, initialism
Show 11 more definitions
  1. 6
    Abbreviation of county, alternative form of Co.. abbreviation, alt-of, uncountable

    "Under McGlinchey's leadership, the INLA committed several atrocities and murders during the Troubles, resulting in the Co Derry native's imprisonment both north and south of the border."

  2. 7
    a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition wordnet
  3. 8
    Initialism of commissioned officer. abbreviation, alt-of, initialism
  4. 9
    Abbreviation of cotton. abbreviation, alt-of, uncountable
  5. 10
    an odorless very poisonous gas that is a product of incomplete combustion of carbon wordnet
  6. 11
    Initialism of corrections officer. US, abbreviation, alt-of, initialism
  7. 12
    Initialism of correctional officer. US, abbreviation, alt-of, initialism
  8. 13
    Initialism of conscientious objector. abbreviation, alt-of, initialism
  9. 14
    Initialism of clothing optional. abbreviation, alt-of, initialism
  10. 15
    Initialism of common-offset method. abbreviation, alt-of, initialism
  11. 16
    Abbreviation of cutoff. abbreviation, alt-of
Verb
  1. 1
    Abbreviation of cast on. abbreviation, alt-of
Pronoun
  1. 1
    Gender-neutral subject pronoun, coordinate with gendered pronouns he and she. gender-neutral, nonstandard, singular, third-person

    "Co consistently does less than cos share of the Community work. 4. Co absents coself from the Community for more than three weeks [...]"

  2. 2
    Gender-neutral object pronoun, coordinate with gendered pronouns him and her. gender-neutral, nonstandard, singular, third-person
Proper Noun
  1. 1
    Abbreviation of Colorado: a state of the United States. abbreviation, alt-of

Antonyms

auto-

Example

"I wonder if it would be possible for you to introduce me to Mr Harrison of PC Interactive Co. Ltd?"

Common questions

What does "co" mean?

Abbreviation of county.

What is a synonym for "co"?

Common synonyms include: aide, atomic number 27, brass, brigadier, business, captain.

How do you use "co" in a sentence?

I wonder if it would be possible for you to introduce me to Mr Harrison of PC Interactive Co. Ltd?

How do you pronounce "co"?

Pronounced /kəʊ/.

Etymology

Coined by feminist writer Mary Orovan in 1970; in common usage in intentional communities of the Federation of Egalitarian Communities.

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