noun
- plural of dah; the long signals in Morse code
Usage: telecommunications
Examples
- The Morse code for the letter O consists of three dahs.
- She tapped out a series of dits and dahs on the telegraph key.
- The radio operator transmitted dahs and dits to spell out the message.
- In Morse code, dahs are three times longer than dits.
- The distress signal SOS uses three dits, three dahs, then three dits.