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

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

From Slate • Apr. 18, 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

And then Muncy led off the fifth with his second solo shot, giving him his 21st career multi-homer game, and his fourth at Coors Field.

From Los Angeles Times • Apr. 17, 2026

In the middle of the meeting, led by France and Britain, President Trump declared on social media he had reached a breakthrough with Iran and the strait would be fully reopened.

From The Wall Street Journal • Apr. 17, 2026

One séance led to another and another and another.

From "American Spirits" by Barb Rosenstock