senior

You can use the word senior to describe anyone who's older than you are. You might say, "My brother is six years my senior," especially if you want to make him feel old.

Senior means "older," but it also means "old or aged," like your grandmother, who despite being a senior citizen, continues her skydiving hobby. A senior is also a student in the final year of either high school or college, or an authority: "She holds a senior position in the State Department." The Latin word senior means "older," and it's the basis of respectful terms in many languages, like seƱor in Spanish and sire in French.

Definitions of senior
1

adj advanced in years; (`aged' is pronounced as two syllables)

senior citizen”
Synonyms:
aged, elderly, older
old
(used especially of persons) having lived for a relatively long time or attained a specific age

adj older; higher in rank; longer in length of tenure or service

senior officer”
Synonyms:
old
(used especially of persons) having lived for a relatively long time or attained a specific age
elder, older, sr.
used of the older of two persons of the same name especially used to distinguish a father from his son
major
of the elder of two boys with the same family name
precedential
having precedence (especially because of longer service)
higher-ranking, ranking, superior
having a higher rank
Antonyms:
junior
younger; lower in rank; shorter in length of tenure or service
immature, young
(used of living things especially persons) in an early period of life or development or growth
junior-grade, lower-ranking, lowly, petty, secondary, subaltern
inferior in rank or status
minor
of the younger of two boys with the same family name
jr., younger
used of the younger of two persons of the same name especially used to distinguish a son from his father
subordinate
subject or submissive to authority or the control of another
show more antonyms...

adj used of the fourth and final year in United States high school or college

“the senior prom”
Synonyms:
fourth-year
last
coming after all others in time or space or degree or being the only one remaining

n a person who is older than you are

Synonyms:
elder
Types:
dean, doyen
a man who is the senior member of a group
doyenne
a woman who is the senior member of a group
Type of:
adult, grownup
a fully developed person from maturity onward

n an undergraduate student during the year preceding graduation

Type of:
undergrad, undergraduate
a university student who has not yet received a first degree

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