Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “do”

do

auxiliary verb (FOR EMPHASIS)   /du/ (present tense does  /dʌz, dəz/, past tense did  /dɪd/)
used to give extra force to the main verb: Do be careful. I did say she was a liar, but I was wrong. "Can I buy stamps here?" "Well, we do sell them, but we’re out of them right now."
(Definition of do auxiliary verb (FOR EMPHASIS) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of do

Definitions of “do” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More