noun
second class; second grade; second rank
Used for ranking, classification, or quality levels, such as train seats, exam grades, or competition tiers.
新幹線の二等車に乗った。
I rode in the second-class car of the Shinkansen.
彼は試験で二等賞を取った。
He won second prize in the exam.
First class or first rank, one level above 二等.
Third class or third rank, one level below 二等.
Compound of 二 (two) and 等 (class, rank).