noun which may take the genitive case particle 'no', noun
over capacity; overcrowded; overbooked
Describes a situation where the number of people or things exceeds the set limit, such as in a room, vehicle, or reservation system. Often used with になる or as a の-adjective.
エレベーターが定員オーバーで、次のを待った。
The elevator was over capacity, so I waited for the next one.
このツアーは定員オーバーのため、申し込みを締め切りました。
This tour is fully booked, so we have closed applications.