Main entry: effort, elbow grease, travail, sweat, exertion
Definition: use of physical or mental energy; hard work
Usage: he got an A for effort; they managed only with great exertion
Main entry: travail, childbed, parturiency, confinement, labor, labour, lying-in
Definition: concluding state of pregnancy; from the onset of contractions to the birth of a child
Usage: she was in labor for six hours
Main entry: moil, drudge, dig, fag, grind, labor, labour, toil, travail
Definition: work hard
Usage: She was digging away at her math homework; Lexicographers drudge all day long