floating voter vs swing voter

floating voter and swing voter both are nouns.

Word	Noun	Adjective	Verb	Adverb
floating voter	Yes	No	No	No
swing voter	Yes	No	No	No

As nouns, floating voter and swing voter are synonyms defined as:

floating voter and swing voter: a voter who has no allegiance to any political party and whose unpredictable decisions can swing the outcome of an election one way or the other

floating voter (noun)	swing voter (noun)
a voter who has no allegiance to any political party and whose unpredictable decisions can swing the outcome of an election one way or the other	a voter who has no allegiance to any political party and whose unpredictable decisions can swing the outcome of an election one way or the other