travail vs uterine contraction

travail and uterine contraction both are nouns.

Word	Noun	Adjective	Verb	Adverb
travail	Yes	No	Yes	No
uterine contraction	Yes	No	No	No

travail (noun)	uterine contraction (noun)
use of physical or mental energy; hard work	a rhythmic tightening in labor of the upper uterine musculature that contracts the size of the uterus and pushes the fetus toward the birth canal
concluding state of pregnancy; from the onset of contractions to the birth of a child

travail (verb)	uterine contraction (verb)
work hard