alarm
noun
\ ə-ˈlärm
\
\
variants:
or less commonly alarum \ ə-ˈlär-əm also -ˈler-
; -ˈla-rəm \
; -ˈla-rəm \
Definition of alarm
(Entry 1 of 2)
1
usually alarum, archaic
: a call to arms
… the angry trumpet sounds alarum …— William Shakespeare
2
: a signal (such as a loud noise or flashing light) that warns or alerts
also
: a device that signals
set the alarm to wake me at seven
3
: sudden sharp apprehension and fear resulting from the perception of imminent danger
4
: a warning notice