alarm (n.)
- admonishment
- admonition
- affright
- alarum
- alert
- anxiety
- apprehension
- arouse
- awe
- balefire
- beacon
- bell
- birdcall
- blinker
- buoy
- call
- caution
- caveat
- consternation
- cowardice
- daunt
- discomfort
- dismay
- disquiet
- distress
- dread
- example
- excitement
- fear
- flare
- foghorn
- forewarning
- fright
- funk
- glance
- gong
- heliograph
- hint
- horn
- horror
- kick
- leer
- lesson
- monition
- moral
- nervousness
- nod
- notice
- notification
- nudge
- panic
- phobia
- poke
- reveille
- rocket
- scare
- semaphore
- shake
- sign
- signal
- siren
- spook
- stagger
- stampede
- startle
- strain
- stress
- summons
- surprise
- taps
- tension
- terror
- threat
- tip-off
- tocsin
- touch
- trepidation
- ultimatum
- uneasiness
- unman
- upset
- warning
- whistle
- wink
alarm (v.)
- affright
- alert
- amaze
- arouse
- astonish
- awe
- beacon
- bell
- blinker
- buoy
- call
- caution
- daunt
- dismay
- disquiet
- distress
- disturb
- dread
- fear
- flare
- fright
- frighten
- funk
- glance
- gong
- heliograph
- hint
- horn
- horripilate
- kick
- leer
- nod
- notice
- nudge
- panic
- poke
- rocket
- scare
- semaphore
- shake
- sign
- signal
- spook
- stagger
- stampede
- startle
- strain
- stress
- summons
- surprise
- terrify
- terrorize
- touch
- unman
- unnerve
- unstring
- upset
- warn
- whistle
- wigwag
- wink
