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class (of students)
group (of people); party; team; crew
lot; bunch; set
crime family; organized-crime syndicate
set (of items); assortment; deck (of cards); pack
typesetting; composition
息子は三年二組みに所属しています。
My son is in class 2 of the third year.
隣の組みの生徒と一緒に掃除をした。
I cleaned up together with students from the next class.
同じ組みの友達と放課後に遊んでいる。
I hang out with friends from my class after school.