confinement vs gestation

confinement and gestation both are nouns.

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

confinement (noun)	gestation (noun)
the act of restraining of a person's liberty by confining them	the conception and development of an idea or plan
the act of keeping something within specified bounds (by force if necessary)	the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
the state of being confined	the period during which an embryo develops (about 266 days in humans)
concluding state of pregnancy; from the onset of contractions to the birth of a child