Dictionary.com

do one's best

Save This Word!

Also, do one's level best or one's damnedest. Perform as well as one can, do the utmost possible, as in I'm doing my best to balance this statement, or She did her level best to pass the course, or He did his damnedest to get done in time. The first term dates from the 16th century, but the addition of level, here meaning “very,” occurred only in the mid-1800s; the variant dates from the late 1800s.

QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

How to use do one's best in a sentence

FEEDBACK