Word
alarm
US/əˈɫɑɹm/
UK/ɐlˈɑːm/
Definitions
01warning device
B1 · Intermediate Countable noun
n. a machine or device that makes a loud noise to warn you about danger, like a fire or a thief.
n. a mechanical or electronic device designed to emit a signal as a warning of danger or unauthorized intrusion.
日本語:警報、目覚まし時計※
“The smoke alarm started ringing because I burnt the toast.”
“The building's security alarm was triggered accidentally when a staff member entered the restricted zone without deactivating the sensors.”
02clock for waking up
A2 · Elementary Countable noun
n. a clock or phone app that makes a sound to wake you up at a specific time.
n. a device or software function used to rouse a person from sleep at a predetermined time.
“I set my alarm for seven o'clock so I wouldn't be late for work.”
“He found it difficult to adjust to the early shift, often sleeping through his alarm despite the high volume of the buzzer.”
Synonyms
03feeling of fear
B2 · Upper Intermediate Uncountable noun
n. a sudden feeling of fear or worry that something dangerous is happening.
n. a state of sudden anxiety or fear resulting from the realization of danger.
“The news of the storm caused great alarm among the people living near the coast.”
“The sudden drop in the company's share price caused considerable alarm among the board of directors, leading to an emergency meeting.”
Synonyms
04to worry someone
B1 · Intermediate
v. to make someone feel worried or afraid.
v. to cause someone to feel a sudden sense of danger or anxiety. Transitive, always requiring an object.
“I don't want to alarm you, but I think I smell gas in the kitchen.”
“The doctor was careful not to alarm the patient while explaining the potential risks associated with the upcoming surgery.”
Collocations
Common phrases and expressions where native English speakers use the word “alarm” in context.
Verb
01. set off an alarm
“The smoke from the burnt toast set off the fire alarm.”
verb + noun
02. set your alarm
“Don't forget to set your alarm for 6:00 AM so you don't miss the train.”
verb + possessive + noun
03. sound the alarm
“The security guard sounded the alarm as soon as he saw the intruders.”
verb + noun
Adjective
04. false alarm
“The fire department arrived, but it was just a false alarm caused by a faulty sensor.”
adj + noun
Noun
05. alarm clock
“My alarm clock is very loud, so it always wakes me up immediately.”
noun + noun
06. alarm goes off
“I was having a great dream when my alarm went off.”
noun + verb
Preposition
07. in alarm
“She looked up in alarm when she heard the loud crash outside.”
prep + noun
Etymology
From Middle English alarme, alarom, borrowed from Middle French alarme, itself from Old Italian all'arme! (“to arms!, to the weapons!”), ultimately from Latin arma (“arms, weapons”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
Related words
Idioms
01. false alarm
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
- Frequency
- Common
- Level
- B1 · IntermediateOxford
- Updated
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QR code
englishreference.com/q/alarm
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「日本語」 data: JMdict (EDRDG), CC BY-SA 4.0