conceive of vs fantasy

conceive of is not a noun while fantasy is a noun.

Word	Noun	Adjective	Verb	Adverb
conceive of	No	No	Yes	No
fantasy	Yes	No	Yes	No

As verbs, fantasy is a hyponym of conceive of; that is, fantasy is a word with a more specific, narrower meaning than conceive of:

conceive of: form a mental image of something that is not present or that is not the case
fantasy: indulge in fantasies

conceive of (noun)	fantasy (noun)
	imagination unrestricted by reality
	something many people believe that is false
	fiction with a large amount of imagination in it

conceive of (verb)	fantasy (verb)
form a mental image of something that is not present or that is not the case	indulge in fantasies