What is the meaning of Junior?

Low in rank; having a subordinate role, job, or situation.

Younger.

Belonging to a younger person, or an earlier time of life.

Of or pertaining to a third academic year in a four-year high school (eleventh grade) or university.

Of or pertaining to a league or competition limited to players below a certain age or level of experience.

A younger person.

A name suffix used after a son's name when his father has the same name (abbreviations: Jnr., Jr., Jun.).

A clothing size for girls or women.

A third-year student at a high school or university.

A junior barrister.

To work in a junior role (on something).

To have juniors (more advanced students) assist in instructing (beginners).

junior (younger or lower-ranked person, for example in job titles)

junior

junior (all senses)

junior

junior (having a subordinate role, job, or situation)

junior (belonging to a younger person, or an earlier time of life)

junior

underclassman

comparative degree of juvenis

junior (youngest member of the family by age)

junior (athlete who is under the age recommended for a sport, usually nineteen years of age)

Jr. (title used after a son's name when his father has the same name)

junior

junior

Source: wiktionary.org