Definition of "senior" in English

adjective

1. Older.

   • senior citizen

2. Higher in rank, dignity, or office; superior.

   • senior member; senior counsel

3. (US) Of or pertaining to a student's final academic year at a high school (twelfth grade) or university.

4. (sports, US, Canada) Of or pertaining to a league or competition limited to players above a certain age or level of experience.

   • senior hockey

noun

1. (now chiefly US) An old person.

2. Someone older than someone else (with possessive).

   • He was four years her senior.

3. Someone seen as deserving respect or reverence because of their age.

4. (obsolete, biblical) An elder or presbyter in the early Church.

5. Somebody who is higher in rank, dignity, or office.

6. (US, Philippines) A final-year student at a high school or university; a finalist.