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

Seven-time Crucible winner O'Sullivan led 6-2 following Saturday's first session and the match looked over when he stretched that advantage to 9-4 in the first-to-13 clash.

From BBC • Apr. 26, 2026

The 1948 invention of the transistor and the 1972 microprocessor led to smaller, more-powerful computers and helped the internet’s rise.

From The Wall Street Journal • Apr. 26, 2026

Then, consider the philosophical gap: For instance, Ai is a dissident whose criticism of the Chinese government led to his imprisonment for 81 days in 2011, without any formal charges brought against him.

From Salon • Apr. 26, 2026

During the 2021 season, Stafford led the Rams to a Super Bowl title.

From Los Angeles Times • Apr. 25, 2026

Leah led the circles but claimed no special powers.

From "American Spirits" by Barb Rosenstock