(one's) level best
The very best one is able to do at some task or activity. I'm just not good at math, so, believe me, a B- in Algebra means that I've done my level best. I know you're worried about the game today, but just go out there and give it your level best. I'm not disappointed to have come in third place—I did my level best and won a medal!
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.
someone's level best
one's very best effort. I will do my level best to find your husband. Don't go to a whole lot of trouble. Your level best is good enough.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
level best
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
level best
n. one’s very best effort. I will do my level best to find your husband.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
(one's) level best
The best one can do in an earnest attempt: I did my level best in math class.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.