couple vs conceive

couple is a noun but conceive is not a noun.

Word	Noun	Adjective	Verb	Adverb
couple	Yes	No	Yes	No
conceive	No	No	Yes	No

couple (noun)	conceive (noun)
a pair who associate with one another
a pair of people who live together
(physics) something joined by two equal and opposite forces that act along parallel lines
two items of the same kind
a small indefinite number

couple (verb)	conceive (verb)
engage in sexual intercourse	become pregnant; undergo conception
link together	judge or regard; look upon; judge
bring two objects, ideas, or people together	have the idea for
form a pair or pairs