noun
Refers to an organized group of singers, such as a school choir or a community chorus.
学校の合唱隊に入りました。
I joined the school choir.
合唱隊の練習は毎週水曜
Choir practice is every Wednesday.
Compound of 合唱 (がっしょう, 'singing together') and 隊 (たい, 'group' or 'corps').