gestation vs labour

gestation and labour both are nouns.

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

gestation (noun)	labour (noun)
the conception and development of an idea or plan	productive work (especially physical work done for wages)
the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus	any piece of work that is undertaken or attempted
the period during which an embryo develops (about 266 days in humans)	a social class comprising those who do manual labor or work for wages
	an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement
	concluding state of pregnancy; from the onset of contractions to the birth of a child

gestation (verb)	labour (verb)
	undergo the efforts of childbirth
	work hard
	strive and make an effort to reach a goal