plural of seat-mile

(informal, derogatory) The act of occupying more than one seat, especially on public transport.

plural of parish seat

(in Louisiana) The city in which the offices of parish government are located. / (in the UK) a seat on a parish council which is won in an election.

(education) The amount of time a student has spent attending a particular course.

A child safety seat that raises the vertical position of the user to allow a safer use of regular car seat belts.

plural of booster seat

Seats of additional members elected to supplement the members directly elected by each constituency, for ensuring that each party's share of the total seats is roughly proportional to the parties' overall shares of votes at the national level.

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.

plural of drop seat