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Definitions

light up

VERB

brighten

Synonyms

STRONGEST

clear up enliven illuminate lighten

STRONG

burnish gleam illumine intensify kindle polish

WEAK

buff up grow sunny punch up spiff up

Antonyms

STRONGEST

complicate darken dull

WEAK

deepen depress fade upset

VERB

illuminate

Synonyms

STRONGEST

brighten flash highlight spotlight

STRONG

fire floodlight ignite illume illumine irradiate kindle light lighten spot

WEAK

hit with a light limelight

Antonyms

STRONG

darken dull extinguish put out

WEAK

cloud complicate involve obscure

VERB

light

Synonyms

STRONGEST

brighten ignite kindle put on shine turn on

STRONG

animate cast fire flood floodlight highlight illume illumine inflame irradiate lighten limelight spot spotlight

WEAK

furnish with light make bright make visible switch on

Antonyms

STRONGEST

dull extinguish put out turn off

WEAK

darken drench mount obscure

VERB

lighten

Synonyms

STRONGEST

brighten

STRONG

flash gleam illume irradiate light shine

WEAK

become light make bright

Antonyms

STRONG

dull

WEAK

blacken bring down burden darken depress dim upset weigh down

VERB

radiate

Synonyms

STRONGEST

beam diffuse diverge emanate emit gleam shine transmit

STRONG

afford broadcast circulate disseminate distribute expand glitter illumine irradiate issue pour proliferate propagate ramble ramify shed spread sprinkle strew yield

WEAK

branch out give out send out shoot out spread out throw out

Antonyms

STRONGEST

dull take

STRONG

collect conceal gather hide hold keep

VERB

twinkle

Synonyms

STRONGEST

blink flicker gleam glint glisten glitter glow illuminate shimmer sparkle wink

STRONG

coruscate flash light scintillate

Antonyms

STRONGEST

darken dull

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I went to grab my mascara and saw the white and blue messages light up.

From Los Angeles Times • May 8, 2026

NASA’s Artemis II fly-by mission will light up the Florida sky at launch, and observers can watch from miles away.

From The Wall Street Journal • Mar. 31, 2026

Oxygen atoms glow green and nitrogen light up in reds, blues and pinks.

From BBC • Mar. 21, 2026

I felt something close to pride as I watched their eyes light up in realization: this was actually a very good sweet — not some leprechaunian trick.

From Salon • Mar. 17, 2026

Boo’s eyes light up as she begins counting.

From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko

light up

Example Sentences

Related Words