We found 9 dictionaries that define the word lights up:

General (5 matching dictionaries)

1. lights up: Collins English Dictionary
2. lights up: Vocabulary.com
3. lights up: Wiktionary
4. Lights Up: Wikipedia, the Free Encyclopedia
5. lights up: TheFreeDictionary.com

Business (1 matching dictionary)

6. lights up: Legal dictionary

Computing (1 matching dictionary)

7. lights up: Encyclopedia

Medicine (1 matching dictionary)

8. lights up: Medical dictionary

Miscellaneous (1 matching dictionary)

9. lights up: Idioms

Definitions from Wikipedia (Lights Up) ▸ noun:  "Lights Up" is a song by English singer-songwriter Harry Styles from his second studio album Fine Line. Opposite: dims, darkens, extinguishes Phrases: something that lights up, face lights up, more... ▸ Words similar to lights up ▸ Usage examples for lights up ▸ Idioms related to lights up ▸ Wikipedia articles (New!) ▸ Words that often appear near lights up ▸ Rhymes of lights up ▸ Invented words related to lights up