Definitions
adjective
used of the third or next to final year in United States high school or college
“the junior class”
noun
a third-year undergraduate
adjective
including or intended for youthful persons
“a junior sports league”
noun
term of address for a disrespectful and annoying male
“look here, junior, it's none of your business”
noun
the younger of two persons
“she is two years my junior”
adjective
younger; lower in rank; shorter in length of tenure or service
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