1 place, chair, bench, sofa, settee, settle, stool, throne:
He found a seat and waited to be called.
2 focus, base, centre, heart, hub, site, capital, cradle, headquarters, fountain-head:
In those days, Paris was the main seat of learning in western Europe. Istanbul was established as the seat of the Turkish empire
3 membership, position, incumbency:
His grandfather held a seat in the House of Commons.
4 bottom, buttocks, posterior(s), rump, hindquarters, fundament, derrière, Colloq behind, butt, backside, rear (end), Brit bum, US fanny, tushie, tush, tokus, hinie, Slang tail, Brit arse, US ass:
He needs a swift kick in the seat to get him to move.
5 abode, residence, home, domicile, estate, mansion:
The duchess used to spend the summer at her country seat in Norfolk.
6 hold, accommodate, have room or space or capacity for, contain, sit:
The new auditorium will seat more than four thousand.
7 install or instal, enthrone, ensconce, instate, invest, establish, place, swear in:
Once Lord Carter has been seated, it will be difficult to get rid of him.