senior

adjective

1. older or elder (designating the older of two men bearing the same name, as a father whose son is named after him, often written as Sr. or sr. following the name): I’d like to speak with the senior Mr. Hansen, please. I’m privileged to introduce Mr. Edward Andrew Hansen, Sr.Compare junior(def 1).
2. of earlier appointment or admission, as to an office, status, or rank: a senior partner.
3. of higher or the highest rank or standing.
4. (in American schools, colleges, and universities) of or relating to students in their final year or to their class.
5. (in certain American colleges and universities) of or relating to the final two years of education, during which a student specializes in a certain field of study.
6. of, for, or pertaining to a senior citizen or senior citizens as a group: senior discounts on local bus fares.
7. of earlier date; prior to: His appointment is senior to mine by a year.
8. Finance. having a claim on payments, assets, dividends, or the like prior to other creditors, mortgages, stockholders, etc.

noun

9. a person who is older than another.
10. a person of higher rank or standing than another, especially by virtue of longer service.
11. (in the U.S.) a student in the final year at a high school, preparatory school, college, or university.
12. a fellow holding senior rank in a college at an English university.
13. a senior citizen.
14. (initial capital letter) a member of the Girl Scouts from 14 through 17 years of age.

adjective

1. higher in rank or length of service
2. older in yearssenior citizens
3. of or relating to adulthood, maturity, or old agesenior privileges
4. education
   1. of, relating to, or designating more advanced or older pupils
   2. of or relating to a secondary school
5. US of, relating to, or designating students in the fourth and final year at college

noun

6. a senior person
7. an elderly person
8. 1. a senior pupil, student, etc
   2. a fellow of senior rank in an English university

adjective

1. mainly US being the older: used to distinguish the father from the son with the same first name or namesCharles Parker, Senior Abbreviation: Sr, Sen

adj.late 13c., from Latin senior “older,” comparative of senex (genitive senis) “old,” from PIE root *sen- “old” (see senile). Original use in English was as an addition to a personal name indicating “the father” when father and son had the same name; meaning “higher in rank, longer in service” first recorded 1510s. The Latin word yielded titles of respect in many languages, cf. French sire, Spanish señor, Portuguese senhor, Italian signor. Senior citizen first recorded 1938, American English. n.mid-14c., “person of authority;” late 14c., “person older than another,” from senior (adj.). Sense of “fourth-year student” is from 1741, from earlier general sense of “advanced student” (1610s).