Meaning of the word "light up" in English

What does "light up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

light up

US /laɪt ʌp/

UK /laɪt ʌp/

to illuminate or make something brighter

Example:

•

The Christmas tree began to light up as soon as it was plugged in.

•

The city skyline began to light up as dusk fell.

Synonym:

illuminate brighten glow shine radiate

to make someone's face or eyes show pleasure or excitement

Example:

•

Her face lit up when she saw the surprise gift.

•

His eyes lit up with excitement at the news.

Synonym:

brighten gleam sparkle beam radiate

to start smoking a cigarette, cigar, or pipe

Example:

•

He decided to light up a cigarette after dinner.

•

Please don't light up in here; it's a non-smoking area.

Synonym:

ignite spark kindle smoke