alarm
a-larm · noun
Definitions
noun
- 1.
A warning of danger; a signal alerting people to a threat.
- 2.
A device that makes a loud noise to warn of danger or wake someone up.
- 3.
Fear or anxiety caused by awareness of danger.
- 4.
To frighten or disturb someone; to cause worry.
Forms
plural: alarms
Phrases & expressions
- •sound the alarm — To warn people of danger.
- •false alarm — A warning that turns out to be unnecessary.
- •alarm clock — A clock that wakes you at a set time.
- •alarm bells — Warning signals that something is wrong.
- •cause for alarm — A reason to be worried.
Related words
Etymology
From Italian all'arme ("to arms"), used as a call to prepare for attack. From Latin ad ("to") + arma ("weapons"). First appeared in English in the 14th century.