As nouns the difference between junior and teenager
is that junior
is a younger person while teenager
is (countable) literally, a person from thirteen'' to nine''teen
who is in their teens; an adolescent.
As an adjective junior
is (not comparable|often|preceded by a possessive adjective or a possessive form of a noun) younger.
* juniour (obsolete)
(not comparable, often, preceded by a possessive adjective or a possessive form of a noun) Younger.
* 1939 , "Uncle Fred in the Springtime":
(not comparable) Of or pertaining to a third academic year in a four-year high school (eleventh grade) or university.
(comparable) Low in rank; having a subordinate role, job, or situation.
Belonging to a younger person, or an earlier time of life.
* Sir Thomas Browne
- The last man I met who was at school with me, though some years my junior, had a long white beard and no teeth.
- Our first studies and junior endeavours.
A younger person.
* (Angela Brazil)
- four years his junior
A third-year student at a high school or university.
A name suffix used after a son's name when his father has the same name. Abbreviation:
- Miss Mitchell would certainly be most relieved to have a monitress who was capable of organising the juniors at games.
(countable) Literally, a person from thirteen'' to nine''teen who is in their teens; an adolescent.
Sometimes only refers up to the legal minor limit in many countries of eighteen years old, or sometimes only refers up to the point of high school graduation. In the earlier years, sometimes referred to as a youth; in later years, sometimes referred to as a young adult.