Definition of "About" :

adjective: on the move

"Up and about."

adverb: (of quantities) imprecise but fairly close to correct

"In just about a minute."

adverb: in the area or vicinity

"A few spectators standing about."

adverb: all around or on all sides

"Dirty clothes lying around (or about)."

adverb: in or to a reversed position or direction

"About face."

adverb: used of movement to or among many different places or in no particular direction

"Wandering about with no place to go."

adverb: (of actions or states) slightly short of or not quite accomplished; all but

"The job is (just) about done."

adverb: in rotation or succession

"Turn about is fair play."