Read the dictionary definition of junior. All definitions for this word.
1. the younger of two persons
1. she is two years my junior
2. a third-year undergraduate
3. a son who has the same first name as his father
4. term of address for a disrespectful and annoying male
1. look here, junior, it's none of your business
5. used of the third or next to final year in United States high school or college
1. the junior class
2. a third-year student
6. including or intended for youthful persons
1. a junior sports league
2. junior fashions
7. younger; lower in rank; shorter in length of tenure or service
