1sweat 
/ˈswɛt/ verb
sweats; sweat or sweat·ed; sweat·ing /ˈswɛt/ verb 1 [no obj] : to produce a clear liquid from your skin when you are hot or nervous
▪ He sweats a lot when he exercises. ▪ The dancers were sweating [=(more formally) perspiring] profusely. ▪ (informal) He was sweating like a pig. [=sweating a lot] 2 [no obj] informal : to work very hard
▪ They sweated and saved so their children could go to college. — often + over ▪ She was sweating over her law books all afternoon. ▪ He sweated over the wording of his speech for several days. 3 informal a : to feel worried or nervous about something [no obj] ▪ We'll let them sweat a while longer. — often + over ▪ After they took the test, they were sweating over [=worrying about] their scores. [+ obj] ▪ We'll let them sweat it out for a while longer.
b [no obj] : to go through an experience that causes a lot of emotional stress or worry — usually + through ▪ The cops made him sweat through 15 minutes of intense questioning before they let him go. ▪ I sweated [=struggled] through geometry in high school.
c [+ obj] US : to worry or be nervous about (something)
▪ “The car won't start—what are we going to do?” “Don't sweat it. I know all about fixing cars.” ▪ Don't sweat the small stuff. [=don't worry about minor things] 4 [no obj] : to produce small drops of liquid on the surface
▪ Cheese sweats during ripening. ▪ A pitcher of ice water sweats on a hot day. 5 [+ obj] chiefly Brit : to cook (something) slowly in a covered pan with a little fat
▪ Sweat sliced onions in a little olive oil until they are soft.
▪ He sweats a lot when he exercises. ▪ The dancers were sweating [=(more formally) perspiring] profusely. ▪ (informal) He was sweating like a pig. [=sweating a lot]
▪ They sweated and saved so their children could go to college. — often + over ▪ She was sweating over her law books all afternoon. ▪ He sweated over the wording of his speech for several days.
b [no obj] : to go through an experience that causes a lot of emotional stress or worry — usually + through ▪ The cops made him sweat through 15 minutes of intense questioning before they let him go. ▪ I sweated [=struggled] through geometry in high school.
c [+ obj] US : to worry or be nervous about (something)
▪ “The car won't start—what are we going to do?” “Don't sweat it. I know all about fixing cars.” ▪ Don't sweat the small stuff. [=don't worry about minor things]
▪ Cheese sweats during ripening. ▪ A pitcher of ice water sweats on a hot day.
▪ Sweat sliced onions in a little olive oil until they are soft.
sweat blood — see blood
sweat bullets
US, informal : to be very nervous or worried
▪ I was sweating bullets while I waited to talk to my boss.
▪ I was sweating bullets while I waited to talk to my boss.
sweat off [phrasal verb]
sweat off (something) or sweat (something) off : to lose (an amount of weight) by sweating (especially by exercising a lot)
▪ He's trying to sweat off a few more pounds.
▪ He's trying to sweat off a few more pounds.
sweat out [phrasal verb]
sweat out (something) or sweat (something) out informal 1 : to wait nervously until the end of (something)
▪ It was a close game, and the fans were really sweating it out at the end. 2 US a : to work hard at (something)
▪ She was sweating it out on the treadmill. [=she was exercising and sweating on the treadmill]
b : to get or achieve (something, such as a victory) by working very hard
▪ He managed to sweat out a narrow victory in the semifinals. 3 : to end (an illness) by exercising and sweating
▪ He's trying to sweat out his cold at the gym.
▪ It was a close game, and the fans were really sweating it out at the end.
▪ She was sweating it out on the treadmill. [=she was exercising and sweating on the treadmill]
b : to get or achieve (something, such as a victory) by working very hard
▪ He managed to sweat out a narrow victory in the semifinals.
▪ He's trying to sweat out his cold at the gym.
