adv. & prep.
adv. 1 on every side; all round; round about. 2 in various places; here and there; at random (fool around; shop around). 3 colloq. a in existence; available (has been around for weeks). b near at hand (it's good to have you around).
prep. 1 on or along the circuit of. 2 on every side of; enveloping. 3 here and there in or near (chairs around the room). 4 US (and increasingly Brit.) a round (the church around the corner). b approximately at; at a time near to (come around four o'clock; happened around June). have been around colloq. be widely experienced.
[ A(2) + ROUND ]