Nouns

(n)seat, placea space reserved for sitting (as in a theater or on a train or airplane)“he booked their seats in advance”, “he sat in someone else's place”
(n)buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, assthe fleshy part of the human body that you sit on“he deserves a good kick in the butt”, “are you going to sit on your fanny and do nothing?”
(n)seatfurniture that is designed for sitting on“there were not enough seats for all the guests”
(n)seatany support where you can sit (especially the part of a chair or bench etc. on which you sit)“he dusted off the seat before sitting down”
(n)seata center of authority (as a city from which authority is exercised)
(n)seatthe location (metaphorically speaking) where something is based“the brain is said to be the seat of reason”
(n)seatthe legal right to sit as a member in a legislative or similar body“he was elected to a seat in the Senate”
(n)seata part of a machine that supports or guides another part
(n)seatthe cloth covering for the buttocks“the seat of his pants was worn through”

Verbs

(v)seat, sit, sit downshow to a seat; assign a seat for“The host seated me next to Mrs. Smith”
(v)seatbe able to seat“The theater seats 2,000”
(v)induct, invest, seatplace ceremoniously or formally in an office or position“there was a ceremony to induct the president of the Academy”
(v)seatput a seat on a chair
(v)seatprovide with seats“seat a concert hall”
(v)seatplace or attach firmly in or on a base“seat the camera on the tripod”
(v)seatplace in or on a seat“the mother seated the toddler on the high chair”