mill around vs mill about

mill around and mill about both are verbs.

Word	Noun	Adjective	Verb	Adverb
mill around	No	No	Yes	No
mill about	No	No	Yes	No

As verbs, mill around and mill about are synonyms defined as:

Other synonyms of mill around include mill.

As verbs, mill around and mill about are synonyms defined as:

mill around and mill about: be about a place without any apparent purpose

Other synonyms of mill around include footle, hang around, lallygag, linger, loaf, loiter, lollygag, lounge, lurk, mess about, tarry.

mill around (verb)	mill about (verb)
move about in a confused manner	move about in a confused manner
be about a place without any apparent purpose	be about a place without any apparent purpose