# LED

/ˈɫɛd/ (US) · /lˈɛd/ (UK)

Source: https://englishreference.com/word/led
Updated: 2026-08-08

## Senses

### 2. electronic light

noun · CEFR B2 · Technical

Stands for Light-Emitting Diode. A small, efficient electronic light used in bulbs, screens, and indicators.

For teachers: Abbreviation for Light-Emitting Diode. A semiconductor light source that emits light when current flows through it.

- The little red LED on the television shows that it is still plugged in.
- Modern architectural lighting relies heavily on LED technology due to its superior energy efficiency and versatile colour-temperature options.

Usage: Usually pronounced as individual letters (L-E-D).

### 3. guided by

adjective · CEFR B2

describes something that is controlled or directed by a specific person or group.

For teachers: functioning under the control, leadership, or direction of a specified agent; frequently used in hyphenated compounds.

- The student-led protest asked for better food in the university cafeteria.
- The community-led initiative successfully lobbied for the preservation of the local parkland against commercial development interests.

Usage: Commonly appears as the second part of a compound adjective, such as 'community-led' or 'expert-led'.

## Examples

- The small red LED shows that the TV is on.
- Modern cities are replacing old street lamps with LED bulbs to reduce energy costs and maintenance.
- The transition to LED technology has revolutionized architectural lighting design, allowing for vibrant color-changing displays that were previously impossible with traditional incandescent or fluorescent sources.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.