インボラ

noun

involuntary upgrade; operational upgrade; free upgrade on overbooked flight

Abbreviation of インボランタリーアップグレード. Used in travel and airline contexts for a free upgrade to business or first class when economy is overbooked.

See also: インボランタリーアップグレード

• 今こん回かいのフライトでインボラをもらって、初はじめてビジネスクラスに乗のれた。

  I got an involuntary upgrade on this flight and was able to fly business class for the first time.