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  • senior
    senior
    adjective
    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).
  • Senior
    Senior
    adjective
    being the older: used to distinguish the father from the son with the same first name or names
Synonyms

senior

American  
[seen-yer] / ˈsin jər /

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.

  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

  • seniors
    plural
  1. a person who is older than another.

  2. a person of higher rank or standing than another, especially by virtue of longer service.

  3. (in the U.S.) a student in the final year at a high school, preparatory school, college, or university.

  4. a fellow holding senior rank in a college at an English university.

  5. a senior citizen.

  6. (initial capital letter) a member of the Girl Scouts from 14 through 17 years of age.

senior 1 British  
/ ˈsiːnjə /

adjective

  1. higher in rank or length of service

  2. older in years

    senior citizens

  3. of or relating to adulthood, maturity, or old age

    senior privileges

  4. education

    1. of, relating to, or designating more advanced or older pupils

    2. of or relating to a secondary school

  5. of, relating to, or designating students in the fourth and final year at college

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a senior person

  2. an elderly person

    1. a senior pupil, student, etc

    2. a fellow of senior rank in an English university

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Senior 2 British  
/ ˈsiːnjə /

adjective

  1. Abbreviation: Sr, Sen. being the older: used to distinguish the father from the son with the same first name or names

    Charles Parker, Senior

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of senior

1350–1400; Middle English < Latin, equivalent to sen ( ex ) old, old man + -ior comparative adj. suffix


Explanation

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 señor in Spanish and sire in French.

Keep Reading on Vocabulary.com

Vocabulary lists containing senior

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

He serves as a senior member of the House Committee on Appropriations and is chair of the Defense Appropriations Subcommittee.

From Los Angeles Times ● Nov. 10, 2026

“It is so difficult to get that capacity back once it closes,” said Don Close, a senior beef industry analyst with Terrain, an agriculture market research firm.

From The Wall Street Journal ● Nov. 10, 2026

Kyiv is sending several senior officials who have been part of previous negotiating teams, including Foreign Intelligence Service head Rustem Umerov, Volodymyr Zelensky's chief of staff Kyrylo Budanov, and MP Davyd Arakhamiya.

From BBC ● Nov. 10, 2026

Alice Huang, also known as Huang Le, was a senior executive at Megaspeed.

From Barron's ● Nov. 9, 2026

As a senior Morgan Stanley executive outside Hubler’s group put it, “They didn’t want to show you the results. They kept saying, That state of the world can’t happen.”

From "The Big Short" by Michael Lewis

Senior UK correspondent Sima Kotecha was inside the Southwark Crown Court during the sentencing.

From BBC ● Nov. 9, 2026

Dr. Jennifer Rood, Interim Senior Vice Chancellor and Executive Director of Pennington Biomedical, emphasized the importance of connecting laboratory discoveries with research involving patients and broader populations.

From Science Daily ● Nov. 9, 2026

Before polls closed Election Night, CBS News Senior White House reporter Weija Jiang posted on X that while the president’s advisors were concerned about potentially “razor thin” U.S.

From Slate ● Nov. 4, 2026

Senior Alana Carrillo got interested in the sport when she was 9 after watching a girl on YouTube play.

From Los Angeles Times ● Nov. 1, 2026

But Tommy was looking eagerly at the Senior 3 boy, as though his name had already been called.

From "Never Let Me Go" by Kazuo Ishiguro

This age-related decline can make influenza particularly dangerous for seniors.

From Science Daily ● Nov. 8, 2026

This year’s seniors are the first to have played the sport all four years of their high school careers.

From Los Angeles Times ● Nov. 1, 2026

Neither do the new deductions for seniors, tips and overtime.

From The Wall Street Journal ● Oct. 30, 2026

Even seniors, now choosing their Medicare plans, are seeing slimmed-down benefits and increases in charges such as drug deductibles.

From The Wall Street Journal ● Oct. 30, 2026

“I mean, why not wait for all this stuff to die down? Coach will have you be a starter next season when all the seniors leave.”

From "Here to Stay" by Sara Farizan

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