man of his word


A man who keeps promises, who can be trusted, as in You can count on Rudy—he's a man of his word. This expression, which uses word in the sense of “a promise or undertaking,” was first recorded in 1542.

QUIZZES

DON’T VACILLATE! VANQUISH THIS WORD OF THE DAY QUIZ!

It’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!
Question 1 of 7
What does “vacillate” mean?
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.