noun
- the sound of a dash in Morse code
Usage: telecommunications
exclamation
- used to express dismissal or contempt
Usage: informal
Examples
- The telegraph operator tapped out dah-dit-dah for the letter K.
- In Morse code, dah represents a long signal.
- She learned the difference between dit and dah sounds.
- When he suggested the ridiculous plan, she just said ‘Dah!’
- The radio transmitted a series of dits and dahs.