cub vs young carnivore

cub and young carnivore both are nouns.

Word	Noun	Adjective	Verb	Adverb
cub	Yes	No	Yes	No
young carnivore	Yes	No	No	No

As nouns, cub and young carnivore are synonyms defined as:

cub and young carnivore: the young of certain carnivorous mammals such as the bear or wolf or lion

cub (noun)	young carnivore (noun)
the young of certain carnivorous mammals such as the bear or wolf or lion	the young of certain carnivorous mammals such as the bear or wolf or lion
a male child (a familiar term of address to a boy)
an awkward and inexperienced youth

cub (verb)	young carnivore (verb)
give birth to cubs