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English definition of “junior”

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junior

adjective  /ˈdʒun·jər/ us  

junior adjective (LESS ADVANCED)

less advanced, or lower in rank: the junior varsity Alfredo is a junior partner in the law firm.

junior adjective (YOUNGER)

[not gradable] younger: He was born in April, so he’s three months my junior (= he is three months younger).

junior

noun [C]  /ˈdʒun·jər/ us  

junior noun [C] (SCHOOL)

a student in the third year of a program of study in a college, university, or high school (= a school for students aged 14 to 18)
(Definition of junior from the Cambridge Academic Content Dictionary © Cambridge University Press)
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