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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

plural

sen

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

plural

sen

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

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sen ³ American  

[sen] / sɛn /

noun

plural

sen

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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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

"We are increasingly inching towards a situation where insurers would need to charge much higher prices because climate risk is going up," said Ishita Sen, one of the researchers behind the paper.

From Barron's • May 11, 2026

Aggressive hedge funds have been trying to profit from the growth of QIS programs by anticipating their trades, says Arnab Sen, who developed QIS products at Barclays before joining Paloma Partners as a portfolio manager.

From The Wall Street Journal • Apr. 21, 2026

But in 2019, under pressure from China, Hun Sen banned online gambling.

From BBC • Apr. 6, 2026

WTI, far from the action and lacking sulfur, can keep trading at huge discounts, Sen added.

From The Wall Street Journal • Mar. 25, 2026

For the occasion Mrs. Sen put on a red sari and red lipstick; she freshened the vermilion in her part and rebraided her hair.

From "Interpreter of Maladies" by Jhumpa Lahiri