Definition of "Sweat" :

noun: use of physical or mental energy; hard work

noun: salty fluid secreted by sweat glands

"Sweat poured off his brow."

noun: condensation of moisture on a cold surface

"The cold glasses were streaked with sweat."

noun: agitation resulting from active worry

"He's in a sweat about exams."

verb: excrete perspiration through the pores in the skin

"Exercise makes one sweat."