The noun sweat has 4 senses (first 1 from tagged texts)
1. (11) perspiration, sweat, sudor -- (salty fluid secreted by sweat glands; "sweat poured off his brow")
2. fret, stew, sweat, lather, swither -- (agitation resulting from active worry; "don't get in a stew"; "he's in a sweat about exams")
3. sweat -- (condensation of moisture on a cold surface; "the cold glasses were streaked with sweat")
4. effort, elbow grease, exertion, travail, sweat -- (use of physical or mental energy; hard work; "he got an A for effort"; "they managed only with great exertion")
Overview of verb sweat
The verb sweat has 1 sense (first 1 from tagged texts)
1. (5) sweat, sudate, perspire -- (excrete perspiration through the pores in the skin; "Exercise makes one sweat")