turn around vs swing around

turn around is a noun but swing around is not a noun.

Word	Noun	Adjective	Verb	Adverb
turn around	Yes	No	Yes	No
swing around	No	No	Yes	No

As verbs, turn around and swing around are synonyms defined as:

turn around and swing around: turn abruptly and face the other way, either physically or metaphorically

Other synonyms of turn around include swing about.

turn around (noun)	swing around (noun)
turning in an opposite direction or position

turn around (verb)	swing around (verb)
improve significantly; go from bad to good	turn abruptly and face the other way, either physically or metaphorically
improve dramatically
turn abruptly and face the other way, either physically or metaphorically