fumble vs look for

fumble is a noun but look for is not a noun.

Word	Noun	Adjective	Verb	Adverb
fumble	Yes	No	Yes	No
look for	No	No	Yes	No

As verbs, look for is a hypernym of fumble; that is, look for is a word with a broader meaning than fumble:

Other hypernyms of fumble include search, seek.

fumble (noun)	look for (noun)
(sports) dropping the ball

fumble (verb)	look for (verb)
drop or juggle or fail to play cleanly a grounder	try to locate or discover, or try to establish the existence of
feel about uncertainly or blindly	be excited or anxious about
handle clumsily
make one's way clumsily or blindly
make a mess of, destroy or ruin