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keep (one's) word
To do as one has promised. Tom always keeps his word, so if he promised to help you move, then he'll be here.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
keep one's word
to uphold one's promise; to do as one says. (The opposite of break one's word.) I told her I'd be there to pick her up, and I intend to keep my word. Keeping one's word is necessary in the legal profession.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
keep/break your ˈworddo/fail to do what you have promised: Do you think she’ll break her word and tell everyone?
Farlex Partner Idioms Dictionary © Farlex 2017