travail vs gestation

travail and gestation both are nouns.

Word	Noun	Adjective	Verb	Adverb
travail	Yes	No	Yes	No
gestation	Yes	No	No	No

travail (noun)	gestation (noun)
use of physical or mental energy; hard work	the conception and development of an idea or plan
concluding state of pregnancy; from the onset of contractions to the birth of a child	the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
	the period during which an embryo develops (about 266 days in humans)

travail (verb)	gestation (verb)
work hard