The Clue
Tapped-out message, often (3 letter answer)
The Answer
SOS
Tags
Notes
The answer SOS is seen frequently, appearing about once every 50 puzzles.
Related Clues
"Help!"
Help!
"Mayday!"
___ pad
Alert asea
Brillo rival
Call for help
Coded message
Distress signal
Emergency message
Emergency signal
Kind of pad
Letters of distress
"M'aidez," e.g.
Mayday, in a way
Mayday's cousin
Morse Mayday
Morse recourse
Offshore A.P.B.
Pad name
Plea at sea
Sinker's call
Stranded message?
Titanic call
Urgent dispatch
Urgent message
911 call, e.g.
Andrea Doria call
Andrea Doria signal
Help wanted notice?
"Mamma Mia!" song
Marooned person's message
Signal that replaced "CQD"
Signal since 1912
Song in "Mamma Mia!"
Sparks's desperate call
Sparks's frantic call
"H-E-L-P!"
Message from a desert isle, perhaps
Plea before going under
Signal from the Titanic: April, 1912
It may be tapped out
Rihanna's first #1 Billboard single
Definition
SOS as a noun:
1. an internationally recognized distress signal in radio code
SO as a noun:
1. (sol, soh, so) = the syllable naming the fifth (dominant) note of any musical scale in solmization