junior

1 junior /ˈʤuːnjɚ/ adjective
1 junior
/ˈʤuːnjɚ/
adjective
Britannica Dictionary definition of JUNIOR
1 
not used before a noun US
a  : younger in age
b  — used chiefly in its abbreviated form Jr. to identify a son who has the same name as his father — compare senior
2 
always used before a noun : lower in standing or rank
— compare senior
3 
always used before a noun : designed for or done by young people
2 junior /ˈʤuːnjɚ/ noun
plural juniors
2 junior
/ˈʤuːnjɚ/
noun
plural juniors
Britannica Dictionary definition of JUNIOR
[count]
1 
: a person who is younger than another person
— compare senior
2 
: a person who is of a lower rank than another person — compare senior
3 
a  US : a student in the third of four years in a high school or college — often used before another noun — compare freshman, sophomore, senior
b  British : a student at a junior school
4 
US, informal — used like a name for a male child or son