dah
part of speech
noun (a dah, dahs); interjection (dah)
meaning for a pupil
1) Dah is the long sound or long signal in Morse code, written as a dash (−); the short one is «dit». tree →
2) (informal) «Dah» is a sound people say, as in «ta-dah!», when showing something proudly; it can also be a spelling of «duh» meaning «that's obvious». tree →
3) (a name) Dah is not an English word in other uses; it may be a part of a name or a word in another language. tree →
sense in the lessons
In science and history lessons on communication, Morse code uses dits and dahs: the letter A is «dit-dah» (·−), and SOS is «dit-dit-dit, dah-dah-dah, dit-dit-dit». In play, «Ta-dah!» announces a magic trick.
examples
- In Morse code, the letter A is dit-dah. tree →
- SOS is three dits, three dahs and three dits. tree →
- Ta-dah! said the magician, pulling out a rabbit. tree →
- Hold the button longer for a dah than for a dit. tree →
- «Is water wet?» «Dah, of course!» tree →
- We tapped out dahs and dits on the desk. tree →
note
A sound word, not a common word on its own. «Dah» and «dit» are spoken names for dash and dot. Spellings of the show-off sound: «ta-da», «ta-dah», «tada».
Trees and pragmatics
Every meaning and example of «dah» parsed by Mova, each sentence with its dependency tree and frames.