A seat in a military aircraft which allows the pilot or other crew members to quickly escape in the case of emergency using an explosive charge or rockets; an ejection seat.

The hinged, contoured seat with a hole in the middle, often with a hinged cover, of a toilet

plural of county seat

A second home in a rural area, especially one of a rich, powerful or important person

(transport) A unit of measure of passenger carrying capacity, equal to the number of seats available multiplied by the number of miles flown.

plural of priority seat

A seat on public transport reserved for use by people with disabilities, the elderly, pregnant women and others in need.

(slang, vulgar) The position of sitting on the rear of a motorcycle, behind the person driving; pillion. / (slang, vulgar) The middle seat in a car, especially the one in the front next to the driver.

plural of drop seat

A legislative seat distribution, used to guarantee that a party gets their fair share of seats, when a party is entitled to fewer seats as a result of party votes than it has won constituencies. Additional seats granted to that party would be overhang seats.