Definition of about

• (of quantities) imprecise but fairly close to correct; "lasted approximately an hour"; "in just about a minute"; "hes about 30 years old"; "Ive had about all I can stand"; "we meet about once a month"; "some forty people came"; "weighs around a hundred pounds"; "roughly $3,000"; "holds 3 gallons, more or less"; "20 or so people were at the party"
• all around or on all sides; "dirty clothes lying around (or about)"; "lets look about for help"; "There were trees growing all around"; "she looked around her"
• in the area or vicinity; "a few spectators standing about"; "hanging around"; "waited around for the next flight"