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Definitions

signal

[sig-nl] / ˈsɪg nl /
ADJECTIVE
extraordinary, outstanding
Synonyms
STRONGEST
conspicuous momentous noteworthy noticeable salient
STRONG
arresting characteristic distinguished individual marked notable pronounced striking
WEAK
arrestive distinctive eminent exceptional eye-catching famous illustrious memorable peculiar prominent remarkable renowned significant
Antonyms
STRONGEST
inconspicuous insignificant obscure unimportant unnoticeable
STRONG
common ordinary vague
WEAK
unexceptional unimpressive unnoteworthy
NOUN
indication; authorization
Synonyms
STRONGEST
alarm beacon cue gesture indicator sign
STRONG
Mayday SOS alert bleep blinker flag flare go ahead mark movement nod okay omen tocsin token wink
WEAK
green light high sign
Antonyms
STRONG
denial refusal veto
VERB
indicate; give a sign to
Synonyms
STRONGEST
warn
STRONG
beckon communicate flag flash gesticulate gesture motion nod semaphore sign signalize wave wink

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.

A bright sky is a signal that it’s daytime, so getting that signal at night throws all of that out of whack.

From Los Angeles Times • May 8, 2026

Rather, it would take further downside confirmation to generate an MVB sell signal.

From MarketWatch • May 8, 2026

So how should investors play the current warning signal?

From MarketWatch • May 7, 2026

“It’s part self-care, part status signal, part algorithm bait,” she adds.

From Salon • May 7, 2026

I need to make a signal that can be seen from the air, Jonathan decided, some sign that we’re here.

From "Earthquake Terror" by Peg Kehret

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