Meanings

to give one's seat to someone

to leave one's seat

to book a seat

regulation at batting

non-smoking seat

back seat (of a car)

number of days (times) one has attended

passenger seat

special seat

special seat

priority seat

reserved seat

currently away from my seat (keyboard, etc.)

leaving one's seat

assistant section or department manager

(make) a long talk (discourse, lecture)

special seats and standing-only space in the galley for people who only intend to see one act of a kabuki play

stand-by (on an airplane)

to leave one's seat

authorized absence