Definition of sweat it out
informal
1
US
: to work hard at (something)
She was sweating it out on the treadmill.
2
: to feel worried or nervous about something
We'll let them sweat it out for a while longer before we give them the test results.
3
: to wait nervously until the end of something
It was a close game, and the fans were really sweating it out at the end.
Buying Guide
Our Reviews team has selected the best fitness products of the year.
Test Your Vocabulary
Name That Food
-
- Name these cookies!

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share sweat it out