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• sen
  sen

  noun

  a money of account of Japan, one 100th of a yen, now used only in certain quotations, as on foreign exchange.
• sen.
  sen.

  abbreviation

  senate.
• Sen.
  Sen.

  abbreviation

  senator
• SEN
  SEN

  abbreviation

  (formerly) State Enrolled Nurse

sen

¹ American  

[sen] / sɛn /

noun

• sen
  plural

1. a money of account of Japan, one 100th of a yen, now used only in certain quotations, as on foreign exchange.

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sen ² American  

[sen] / sɛn /

noun

• sen
  plural

1. a money of account of Cambodia, one 100th of a riel.

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sen ³ American  

[sen] / sɛn /

noun

• sen
  plural

1. an aluminum coin and monetary unit of Indonesia, one 100th of a rupiah.

2. a bronze, cupronickel, or copper-clad coin and monetary unit of Malaysia, one 100th of a ringgit.

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sen. ⁴ American  

Or sen.

abbreviation

1. senate.

2. senator.

3. senior.

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Sen. ¹ British  

abbreviation

1. senator

2. senior

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SEN ² British  

abbreviation

1. (formerly) State Enrolled Nurse

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sen ³ British  

/ sɛn /

noun

1. a monetary unit of Brunei, worth one hundredth of a dollar, Cambodia, worth one hundredth of a riel, Indonesia, worth one hundredth of a rupiah, Malaysia, worth one hundredth of a ringgit, and formerly of Japan (where it is still used as a unit of account)

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Other Word Forms

Noun Inflected Forms

• sen
  plural

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Etymology

Origin of sen¹

First recorded in 1725–35; from Japanese, from Middle Chinese, equivalent to Chinese qián; cf. chon

Origin of sen²

First recorded in 1960–65; from Khmer sein, probably Khmer pronunciation of the French abbreviation cent., for centime ( see centime), stamped on Cambodian coins

Origin of sen³

First recorded in 1950–55; from Malay, from English cent

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Example Sentences

See Examples For:

sen sen. Sen. SEN

But search revenue growth slowed to 12% year-over-year, down from 17% growth in the second quarter, helping sen shares down about 10% in after-hours trading.

From The Wall Street Journal ● Oct. 29, 2026

"What makes these organisms particularly dangerous is their ability to survive conditions that kill many other microbes," said corresponding author Longfei Shu of Sun Yat sen University.

From Science Daily ● Jan. 25, 2026

A UniCredit logo is sen in downtown Rome, May 10, 2016.

From Reuters ● Mar. 9, 2022

The menu features Lao dishes such as the rice noodle soup khao piak sen and beef noodle soup Lao pho.

From Los Angeles Times ● Feb. 12, 2019

I was too old for the sen ice in World War II, but the war did make for a lot of work.

From "Life Is So Good" by George Dawson

Elizabeth, daughter of Mr. Richard Collins, sen. 16th May, 1656.

From The Poetical Works of William Collins With a Memoir by William Collins

Yet she had not the slightest cough; and it was remarked by Dr. Warren, sen. that he had never observed that diseased action to increase, while the wound remained open.

From Cases of Organic Diseases of the Heart by John Collins Warren

Layne, sen., aged 121 years, being born at Albemarle, near Buckingham county, 1700.

From Notes and Queries, Number 212, November 19, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc. by George Bell

Sir John Tradescant, sen., three-quarter size, ornamented with fruit, flowers, and garden roots.

From Notes and Queries, Number 79, May 3, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc by George Bell

These notes he addressed to Mr. Van Quintem, sen., and Mrs. Crull, at their residences.

From Round the Block by John Bell Bouton

In an isolated island village, a namesake challenge to Sen. Dan S. Sullivan seemed harmless—until the candidate vanished and federal agents started knocking on doors.

From The Wall Street Journal ● Nov. 6, 2026

As Sen. Raphael Warnock has already suggested, there is no reason to choose between the two.

From Slate ● Nov. 5, 2026

“When I did speak with Sen. Schumer on the phone, it was basically a ‘we will see,’” she said.

From Salon ● Nov. 5, 2026

With 51.7% of expected votes in, former San Francisco Supervisor Jane Kim held a slight lead over three-term state Sen. Ben Allen, with 52% versus 48%.

From Los Angeles Times ● Nov. 4, 2026

As he wrote out the check he apologized on behalf of Mrs. Sen. He said she was resting, though when Eliot had gone to the bathroom he’d heard her crying.

From "Interpreter of Maladies" by Jhumpa Lahiri

There are big changes planned in the way pupils with SEN are supported.

From BBC ● Sep. 6, 2026

The education minister has called for £70m a year over the next decade for an executive-led SEN Capital Investment Programme to transform educational facilities.

From BBC ● Sep. 6, 2026

Lottie has a statement of SEN which her father said states that she needs to be in a special school.

From BBC ● Sep. 6, 2026

Some are already in progress, with the EA saying pupils with SEN will receive "earlier, more tailored support".

From BBC ● Sep. 6, 2026

It will generally be right to employ SEN to represent the English suffix -less, as:—Sendanka = thankless, senmona = penniless, senhara = hairless, bald, senutila = useless.

From The International Auxiliary Language Esperanto Grammar and Commentary by George Cox

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