Definitions:

1. including or intended for youthful persons adjective
   • a junior sports league
2. term of address for a disrespectful and annoying male noun
   • look here, junior, it's none of your business
3. the younger of two persons noun
   • My colleague is several years my junior.

Synonyms:

• next-to-last
• third-year

NearBy Words:

• junior
• junior-grade