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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

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

Example Sentences

See Examples For:

sen sen. Sen. SEN

"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

Recommended Dishes Khao yum gai zaap; gai yang; tom yum; larb gai; larb neua; nam tok; yum woon sen.

From New York Times ● Dec. 15, 2016

They had been bom horn her faith and her need, given life by the deaths of her husband and unborn sen and the maegi Mini Maz Duur.

From "A Clash of Kings" by George R.R. Martin

John Young, sen., and John P. Greene's wife, Rhoda, were also witnesses.

From Life of Heber C. Kimball, an Apostle The Father and Founder of the British Mission by Orson F. Whitney

Joseph, sen., first made a circle, twelve or fourteen feet in diameter: 'This circle,' said he, 'contains the treasure.'

From Monsieur Violet by Frederick Marryat

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

Mr. Vanbrugh sen. died at Chester, and was buried with several of his children at Trinity Church, July 19, 1689.

From Notes and Queries, Number 201, September 3, 1853 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc by George Bell

In Ohio, former Sen. Jon Husted told the National Review in August that the public “would like to understand the strategy behind what the president’s trying to do.”

From Los Angeles Times ● Sep. 25, 2026

Sen. Steve Daines, a Republican from Montana who was at the dinner, said he interacted with both senior U.S. and Chinese officials, including Xi, at the event.

From The Wall Street Journal ● Sep. 25, 2026

The industry has also been able to rely on Sen. Ted Cruz of Texas and Louisiana Republicans.

From The Wall Street Journal ● Sep. 24, 2026

Sen. John Curtis of Utah isn’t up for reelection until 2030.

From Slate ● Sep. 23, 2026

Eliot thought she was just practicing while they waited for Mr. Sen. But then she gave a signal and turned.

From "Interpreter of Maladies" by Jhumpa Lahiri

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

From BBC ● Sep. 6, 2026

The changes would give schools "more flexibility" and freedom to decide how best to support children and young people with SEN in the classroom, the EA said when the plans were announced.

From BBC ● Sep. 6, 2026

One in five pupils in Northern Ireland - more than 70,000 - have some form of SEN, and demand for school places outstrips capacity.

From BBC ● Sep. 6, 2026

Jessica Nicolaou, deputy manager and SEN lead at Little Smarties Nursery in Bishops Cleeve, Gloucestershire, said strong links between nurseries and schools could help children transition successfully into Reception.

From BBC ● Aug. 23, 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