Definition of “re” - English Dictionary

“re” in British English

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uk /riː/ us /riː/

renoun [ S ]

also ray uk /reɪ/ us /reɪ/


uk /riː-/ /ri-/ /rɪ-/ us /riː-/ /ri-/ /rɪ-/


uk /ər/ us /ɚ/

short form of are:

You're late.

(Definition of “re” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“re” in American English

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us /ri, reɪ/

(esp. in business letters) about; on the subject of:

Re your memo July 10, I have indeed received the order.


us /ri/

used esp. with verbs to add the meaning "do again":

reactivate; reactivation; reassess; reassessment; reassign; recommence; re-create; redistribute; redistribution; redraft; reevaluate; reevaluation; refocus; reformulate; reformulation; reinterpret; reinterpretation; reinvest; reinvestment; reoccur; reorient; reorientation

(Definition of “re” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“Re” in Business English

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Renoun [ U ]

uk us

abbreviation for reinsurance : used in the names of companies that deal with reinsurance:

According to its website, Swiss Re is a leading risk carrier and worldwide provider of financial services.


uk /reɪ/ us /riː/

COMMUNICATIONS, INTERNET used in the subject line of an email to show that you are replying to an email that was sent to you with the same title. If you reply to an email, this word is automatically added to the reply the person you are emailing receives:

The email was titled "Re: Our Meeting Next Week."

COMMUNICATIONS used in business letters to refer to a letter or something in a letter you have received and are replying to:

Re your communication of 15 February...


uk /riː-/ us

added in front of words to mean "again":


(Definition of “Re” from the Cambridge Business English Dictionary © Cambridge University Press)