Meaning : Salty fluid secreted by sweat glands.
Example :
Sweat poured off his brow.
Synonyms : perspiration, sudor
Meaning : Condensation of moisture on a cold surface.
Example :
The cold glasses were streaked with sweat.
Meaning : Use of physical or mental energy. Hard work.
Example :
He got an A for effort.
They managed only with great exertion.
Synonyms : effort, elbow grease, exertion, travail