(aviation) A measure of an airline flight's passenger carrying capacity. It is equal to the number of seats onboard an aircraft multiplied by the distance flown in miles. Seats that are not available for sale to revenue-paying passengers (e.g., seats reserved for crew rest, etc.) are excluded from this calculation.

A car safety restraint designed for infants and young children.

plural of child safety seat

plural of back-seat driver

A rumble seat in an automobile.

plural of mother-in-law seat

plural of available seat-mile

Synonym of play to the gallery

(This entry is a translation hub.) A ticket with guaranteed firm seating in a bus or train

present participle of take one's seat