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# dah

«dah» in Mova's school dictionary: **the long sound or long signal in Morse code, written as a…** — its meaning for a pupil, its sense in the lessons and examples.

### 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 →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#m1)

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 →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#m2)

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 →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#m3)

### 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 →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x1)
- SOS is three dits, three dahs and three dits. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x2)
- Ta-dah! said the magician, pulling out a rabbit. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x3)
- Hold the button longer for a dah than for a dit. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x4)
- «Is water wet?» «Dah, of course!» [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x5)
- We tapped out dahs and dits on the desk. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/#x6)

### 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](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/D/dah/), each sentence with its dependency tree and frames.