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Definitions

alarm

[uh-lahrm] / əˈlɑrm /
NOUN
feeling of sudden fear
Synonyms
STRONGEST
anxiety apprehension consternation dismay dread horror nervousness panic scare tension terror trepidation unease uneasiness
STRONG
distress fright strain stress
WEAK
cold feet
Antonyms
STRONGEST
assurance calm calmness collectedness composure confidence contentment ease encouragement happiness peace tranquility
STRONG
health
WEAK
quietness repose security
NOUN
warning, signaling device
Synonyms
STRONGEST
alert buzzer caution cry signal warning whistle
STRONG
Mayday SOS bell blast call clock drum flap flash forewarning gong horn nod scramble scream shout sign siren squeal tip tocsin trumpet wink yell
WEAK
high sign tip off
Antonyms
WEAK
assurance calmness composure confidence peace quietness repose security
VERB
upset
Synonyms
STRONGEST
amaze astonish daunt dismay frighten scare startle surprise terrify unnerve
STRONG
chill distress panic spook
WEAK
give a turn make jump scare silly scare stiff scare to death
Antonyms
STRONGEST
calm comfort encourage expect
WEAK
assure gladden reassure repose soothe

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.

But the partnership unraveled when Arena used AI for sponsored content on Sports Illustrated’s website, which sounded alarm bells at the esteemed publication.

From Los Angeles Times • Apr. 5, 2026

To his alarm, police lights soon flashed through his bedroom window.

From Los Angeles Times • Apr. 1, 2026

Moreover, fears of a shortage of helium have also raised alarm in the semiconductor industry.

From MarketWatch • Mar. 31, 2026

BlackRock CEO Larry Fink sounded the alarm on the high stakes of the Iran conflict last week.

From The Wall Street Journal • Mar. 31, 2026

Raising the alarm, the boy yelled at the top of his lungs until the village adults came.

From "In the Shadow of Liberty" by Kenneth C. Davis

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.