incubation vs birth

incubation and birth both are nouns.

Word	Noun	Adjective	Verb	Adverb
incubation	Yes	No	No	No
birth	Yes	No	Yes	No

As nouns, birth is a hypernym of incubation; that is, birth is a word with a broader meaning than incubation:

Other hypernyms of incubation include birthing, giving birth, parturition.

incubation (noun)	birth (noun)
maintaining something at the most favorable temperature for its development	the event of being born
sitting on eggs so as to hatch them by the warmth of the body	a baby born; an offspring
(pathology) the phase in the development of an infection between the time a pathogen enters the body and the time the first symptoms appear	the process of giving birth
	the kinship relation of an offspring to the parents
	the time when something begins (especially life)

incubation (verb)	birth (verb)
	cause to be born