[noun] term of address for a disrespectful and annoying male; "look here, junior, it's none of your business"
[noun] a third-year undergraduate
[noun] the younger of two men
[noun] a son who has the same first name as his father Synonyms:Junior, Jr, Jnr
[adjective] younger; lower in rank; shorter in length of tenure or service
[adjective] used of the third or next to final year in United States high school or college; "the junior class"; "a third-year student" Synonyms:third-year, next-to-last
[adjective] including or intended for youthful persons; "a junior sports league"; "junior fashions"