waltz vs waltz around

waltz is a noun but waltz around is not a noun.

Word	Noun	Adjective	Verb	Adverb
waltz	Yes	No	Yes	No
waltz around	No	No	Yes	No

As verbs, waltz and waltz around are synonyms defined as:

waltz (noun)	waltz around (noun)
a ballroom dance in triple time with a strong accent on the first beat
music composed in triple time for waltzing
an assured victory (especially in an election)

waltz (verb)	waltz around (verb)
dance a waltz	dance a waltz