pivot vs fulcrum

pivot and fulcrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
pivot	Yes	No	Yes	No
fulcrum	Yes	No	No	No

As nouns, fulcrum is a hyponym of pivot; that is, fulcrum is a word with a more specific, narrower meaning than pivot:

Other hyponyms of pivot include pintle.

pivot (noun)	fulcrum (noun)
the act of turning on (or as if on) a pivot	the pivot about which a lever turns
axis consisting of a short shaft that supports something that turns
the person in a rank around whom the others wheel and maneuver

pivot (verb)	fulcrum (verb)
turn on a pivot