led

¹ American  

[led] / lɛd /

verb

1. simple past tense and past participle of lead.

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LED ² American  

[el-ee-dee, led] / ˈɛlˌiˈdi, lɛd /

noun

1. light-emitting diode: a semiconductor diode that emits light when conducting current and is used in electronic displays, indoor and outdoor lighting, etc.

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LED ¹ British  

abbreviation

1. light-emitting diode

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led ² British  

/ lɛd /

verb

1. the past tense and past participle of lead 1

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LED Scientific  

/ ĕl′ē-dē′,lĕd /

1. Short for light-emitting diode. An electronic semiconductor device that emits light when an electric current passes through it. They are considerably more efficient than incandescent bulbs, and rarely burn out. LEDs are used in many applications such as flat-screen video displays, and increasingly as general sources of light.

2. See also semiconductor laser

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Other Word Forms

• unled adjective
• well-led adjective

Example Sentences

“It’s definitely out of the ordinary,” said Capt. Eric Hood, a 20-year veteran with the California Department of Insurance who led the probe, in an interview with The Times on Friday.

From Los Angeles Times • Apr. 18, 2026

The hosts discuss what led to the federal jury ruling that the concert behemoth was acting as a monopoly.

From Slate • Apr. 18, 2026

On Friday, a high level delegation from European Commission President Ursula von der Leyen's office arrived in Budapest for informal talks with Tisza officials, led by Péter Magyar.

From BBC • Apr. 17, 2026

Roughly 90 S&P 500 index companies are set to report earnings this week, led by Capital One Financial, Danaher, GE Aerospace, RTX, and UnitedHealth Group on Tuesday.

From Barron's • Apr. 17, 2026

The discordant song about Clare began again, led by the largest boy in the group.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman