WordNet (r) 3.0 (2006):
sit down v 1: take a seat [syn: sit down, sit] [ant: arise, get up, rise, stand up, uprise] 2: show to a seat; assign a seat for; "The host seated me next to Mrs. Smith" [syn: seat, sit, sit down] 3: be seated [syn: sit, sit down] [ant: lie, stand, stand up]