noun, noun which may take the genitive case particle 'no'
filling a vacancy; supplementation
Refers to the act or system of filling an empty position, often in an organization or team. Can be used as a noun or with の to modify another noun.
Since a vacancy opened up, we hurried the process of filling it.
補欠選挙が来月行われる。
A by-election will be held next month.
A person who stands by to take over a role when needed, such as a substitute player in sports or an alternate member of a committee.
彼はサッカー部の補欠だ。
He is a substitute on the soccer team.
補欠の選手が急に出場することになった。
The substitute player suddenly had to take the field.
He couldn't play in the match and became a substitute.
He played as a substitute in place of the injured player.
I was admitted off the waiting list to my first-choice university.
The coach chose the rookie as a substitute.
prosthetic group