abandoned infant vs babe

abandoned infant and babe both are nouns.

Word	Noun	Adjective	Verb	Adverb
abandoned infant	Yes	No	No	No
babe	Yes	No	No	No

As nouns, babe is a hypernym of abandoned infant; that is, babe is a word with a broader meaning than abandoned infant:

abandoned infant: a child who has been abandoned and whose parents are unknown
babe: a very young child (birth to 1 year) who has not yet begun to walk or talk

Other hypernyms of abandoned infant include baby, infant.

abandoned infant (noun)	babe (noun)
a child who has been abandoned and whose parents are unknown	a very young child (birth to 1 year) who has not yet begun to walk or talk