bear vs give birth

bear is a noun but give birth is not a noun.

Word	Noun	Adjective	Verb	Adverb
bear	Yes	No	Yes	No
give birth	No	No	Yes	No

As verbs, give birth is a hypernym of bear; that is, give birth is a word with a broader meaning than bear:

Other hypernyms of bear include bear, birth, deliver, have.

As verbs, bear and give birth are synonyms defined as:

Other synonyms of bear include birth, deliver, have.

bear (noun)	give birth (noun)
massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws
an investor with a pessimistic market outlook; an investor who expects prices to fall and so sells now in order to buy later at a lower price

bear (verb)	give birth (verb)
be pregnant with	cause to be born
cause to be born	create or produce an idea
have on one's person
behave in a certain manner; show a certain behavior; conduct or comport oneself
put up with something or somebody unpleasant
move while holding up or supporting
support or hold in a certain manner
bring forth
maintain (a theory, thoughts, or feelings)
have rightfully; of rights, titles, and offices
bring in
take on as one's own the expenses or debts of another person
have
contain or hold; have within