Morse letter
O in Morse Code
O in Morse code is “---”. Copy it, play the sound, or compare it with nearby letters in the International Morse Code alphabet.
---A memory cue and a real word.
Memory cueO is three long dashes with no dots.
Example wordOSCAR begins with O: --- ... -.-. .- .-.
Compare itM is the shorter two-dash version: --.
O as a Morse signal.
| Character | Morse Code | Pronunciation | NATO word | Type |
|---|---|---|---|---|
| O | --- | dah dah dah | Oscar | Letter |
Write, sound, or signal O clearly.
Write O in Morse code as ---. In a word, keep a space before and after this character's Morse pattern so it does not merge with neighboring letters.
For sound or light, send dots as short signals and dashes as longer signals. The same pattern represents uppercase O and lowercase o.
Quick answers about O.
What is O in Morse code?
O in Morse code is “---”. It is the same pattern for uppercase O and lowercase o.
How do you pronounce O in Morse code?
O is pronounced dah dah dah in Morse rhythm.
Is lowercase o different in Morse code?
No. International Morse Code does not distinguish uppercase and lowercase letters, so O and o both use “---”.