confinement vs parturition

confinement and parturition both are nouns.

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

As nouns, parturition is a hypernym of confinement; that is, parturition is a word with a broader meaning than confinement:

confinement: concluding state of pregnancy; from the onset of contractions to the birth of a child
parturition: the process of giving birth

Other hypernyms of confinement include birth, birthing, giving birth.

confinement (noun)	parturition (noun)
the act of restraining of a person's liberty by confining them	the process of giving birth
the act of keeping something within specified bounds (by force if necessary)
the state of being confined
concluding state of pregnancy; from the onset of contractions to the birth of a child