Nounjunior (at work, school, etc.); younger people; younger student

Noun(approximate) age; years · elderly; old; aged · older (than); senior

Nounyoung person; youngster · greenhorn; novice; inexperienced person

Nouncomrade; fellow

Noun, used as a suffixsuffixed to words indicating a class of people to create a plural (esp. in impolite contexts)