сoworker definition

Coworker – a person you work with in the same organization, company, or workplace. The word is functionally a near-synonym of “colleague”. You’ll hear and read it in workplace conversations, HR communications, social media posts about work life and any professional context where a neutral, unpretentious word for “someone I work with” is needed.  

Part of speech:
Noun (countable)
Phonetic transcription (IPA):
/ˈkoʊˌwɝː.kɚ/
CEFR level:
B1
Word frequency:

How to Properly Pronounce “Coworker”?

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The word “coworker” has three syllables, with the main stress on the first: CO-worker. The prefix co- means “together” or “with,” and it is pronounced with the same opening sound heard in “go” and “show”. Be careful not to confuse “coworker” with “worker”. Native speakers clearly pronounce the first syllable, making the distinction easy to hear in conversation.

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Plural & Possessive Forms of “Coworker”

“Coworker” is a completely regular countable noun that doesn’t pose any spelling difficulties in the plural or possessive form. It’s easy to use, but mistakes can easily be made regarding agreement with verbs and apostrophes in the plural and possessive. See the table and note below.

Form

Example

Singular: coworker

 A coworker flagged the error before the report was sent out.

Plural: coworkers

 Her coworkers organized a leaving party that genuinely surprised her.

Singular possessive: coworker’s

 She covered her coworker’s responsibilities for two weeks without being asked.

Plural possessive: coworkers’

 The coworkers’ concerns were raised formally at the next team meeting.

With “a”: a coworker

 He heard about the restructure from a coworker before the official announcement.

With “my/your/their”

 My coworkers have been remarkably supportive through the transition.
сoworker in a sentence

Natural Collocations with “Coworker”

Professional English relies heavily on collocations. Learning these combinations will help you communicate more naturally during meetings, interviews and workplace discussions.

Verb + “Coworker” Collocations

Phrase

Explanation

Example

support a coworker

help a colleague professionally or personally

 She supported a coworker who was struggling with a demanding project.

train a coworker

teach workplace skills

 He spent several weeks training a new coworker.

consult a coworker

seek advice or expertise

 Before responding, I consulted a coworker from the legal team.

assist a coworker

provide practical help

 She assisted a coworker with the quarterly report.

introduce a coworker

present someone professionally

 The manager introduced a coworker from the Paris office.

recommend a coworker

suggest someone for a role or opportunity

 He recommended a coworker for the leadership program.

Adjective + “Coworker” Collocations

Phrase

Explanation

Example

experienced coworker

someone with substantial workplace knowledge

 I learned several useful techniques from an experienced coworker.

supportive coworker

someone who is helpful and encouraging

 Having a supportive coworker makes stressful projects easier.

former coworker

someone you worked with in the past

 A former coworker contacted me about a job opportunity.

trusted coworker

someone considered reliable

 She shared the information only with a trusted coworker.

remote coworker

someone who works from another location

 Our remote coworkers joined the meeting online.

Common Mistakes with “Coworker”

Many learners confuse “coworker”, “colleague” and “teammate”. While they are similar, each word has a slightly different focus and level of formality.

Incorrect Correct

Why?

 He is my coworker in the soccer team.
 He is my teammate in the soccer team.

Sports teams usually use “teammate”.

 My coworker work in marketing.
 My coworker works in marketing.

Singular subjects require singular verbs.

 She is one of my coworker.
 She is one of my coworkers.

The phrase “one of” requires a plural noun.

 I discussed with my coworker about the issue.
 I discussed the issue with my coworker.

“Discuss” does not require “about”.

 We are coworkers since 2020.
 We have been coworkers since 2020.

Use Present Perfect for an ongoing situation.

Coworker in German, French and Spanish

Although the concept exists across languages, direct translations often vary depending on the workplace context and level of formality.

Language

Word for “Coworker”

Flag SpanishSpanish

 compañero de trabajo

Flag FrenchFrench

 collègue

Flag GermanGerman

 Arbeitskollege / Arbeitskollegin

Tip: 

In discussions on professional relations, the noun “coworker” can be called the most practical term among those used at workplaces. Master this word along with its typical collocations and you will find your conversations more fluent and natural.