空くう席せき

noun, noun which may take the genitive case particle 'no'

empty seat; unoccupied seat

Used for a seat that is not occupied or not yet reserved, especially on trains, planes, at events, or in restaurants. Also works as a no-adjective in phrases such as 空席の確認.

• この列れっ車しゃにはまだ空くう席せきがあります。

  There are still empty seats on this train.

• 受うけ付つけで空くう席せきの状じょう況きょうを確かく認にんした。

  I checked the seat availability at the reception desk.

noun, noun which may take the genitive case particle 'no'

vacancy; vacant post; unfilled position

Extends from an empty seat to an unfilled position, office, or membership slot. Common in formal or news-like contexts when a post remains unoccupied.

• 社しゃ長ちょうのポストは半はん年とし間かん、空くう席せきだった。

  The president's post was vacant for half a year.

• 委い員いん会かいにはまだ二ふたつの空くう席せきがある。

  There are still two vacancies on the committee.