pivot vs swivel

pivot and swivel both are nouns.

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

As verbs, pivot and swivel are synonyms defined as:

pivot (noun)	swivel (noun)
the act of turning on (or as if on) a pivot	a coupling (as in a chain) that has one end that turns on a headed pin
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)	swivel (verb)
turn on a pivot	turn on a pivot