SOS

Strongest matches

• alert
• buzzer
• caution
• cry
• signal
• warning
• whistle

Strong matches

• bell
• blast
• call
• clock
• drum
• flap
• flash
• forewarning
• gong
• horn
• Mayday
• nod
• scramble
• scream
• shout
• sign
• siren
• squeal
• tip
• tocsin
• trumpet
• wink
• yell

Weak matches

• high sign
• tip off

Strongest matches

• alarm
• signal

Strong matches

• admonition
• flap
• Mayday
• sign
• siren
• wink

Weak matches

• high sign
• tip off

Strongest match

• warning signal

Weak matches

• alarm
• burglar alarm
• call for help
• danger signal
• fire alarm
• flare
• Mayday
• notice to mariners
• signal of distress

Strongest matches

• alarm
• beacon
• cue
• gesture
• indicator
• sign

Strong matches

• alert
• bleep
• blinker
• flag
• flare
• go ahead
• mark
• Mayday
• movement
• nod
• okay
• omen
• tocsin
• token
• wink

Weak matches

• green light
• high sign

Strongest matches

• admonition
• advice
• alarm
• alert
• caution
• example
• guidance
• hint
• indication
• information
• lesson
• notification
• prediction
• recommendation
• sign
• signal
• suggestion
• threat
• word

Strong matches

• augury
• caveat
• exhortation
• fore
• foretoken
• forewarning
• injunction
• intimation
• Mayday
• omen
• portent
• premonition
• presage
• tip
• tip-off
• token
• wink

Weak matches

• distress signal
• handwriting on the wall
• heads up
• look out
• watch-it
• word to the wise