# light up a room

idiom

Source: https://englishreference.com/idiom/light-up-a-room
Updated: 2026-08-10

## Meaning

To possess great energy and appeal; to cause a social gathering to become animated and cheerful.

## Examples

- Her smile really lights up a room.
- Whenever he walks into a party, his positive energy seems to light up a room.
- She possesses a rare, magnetic charisma that manages to light up a room the moment she arrives at any social gathering.

---

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.