Pronunciation IPA (key): /diːd/ Audio (US)(file) Noun Singular deed Plural deeds (countable) A deed is an action that is done; sometimes it is brave and important The man had done a good deed by saving that child. (countable) In legal work, a deed is an agreement or contract; often on paper Don't forget to sign the deed or else it won't be valid. Synonyms act actionWikiwand - on Seamless Wikipedia browsing. On steroids.