re-side? v. re?side (r??za?d) v.i. -sid?ed, -sid?ing. 1. to dwell permanently or for a considerable time; live. 2. (of things, qualities, etc.) to be present habitually; be inherent (usu. fol. by in). 3. to rest or be vested, as powers or rights (usu. fol. by in). [1425?75; late Middle English