Definition of about1 a : reasonably close to about a year ago
b : almost about starved just about finished
c : on the verge of —usually used with be and a following infinitive is about to join the army —used with a negative to express intention or determination not about to quit
2 : on all sides : around looked about for a place to park
3 a : in rotation They go about in circles.
b : around the outside
4 : in many different directions : here and there walked about for hours
5 : in the vicinity : near He spoke to the people standing about.
6 : in the opposite direction face about the other way about