birth vs accouchement

birth and accouchement both are nouns.

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

As nouns, accouchement is a hyponym of birth; that is, accouchement is a word with a more specific, narrower meaning than birth:

birth: the process of giving birth
accouchement: the parturition process in human beings; having a baby; the process of giving birth to a child

birth (noun)	accouchement (noun)
the event of being born	the parturition process in human beings; having a baby; the process of giving birth to a child
a baby born; an offspring
the process of giving birth
the kinship relation of an offspring to the parents
the time when something begins (especially life)

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