Alphabet · A–Z

O in Morse code

Standard Morse code for O. Copy it, hear it, or practice with real examples.

O
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3 signals (0 dots, 3 dashes)Dots are short • dashes are longLetters use spaces • words use “/”

Memory mnemonic

OOO-LOOONG-HOOOOLE

Say it aloud with the stresses shown. The phrase carries the same dit/dah rhythm as the Morse for O. Once the rhythm sticks the dots and dashes follow.

This is the widely-circulated Scout-meeting variant. Many teachers develop their own — the words don't matter, only that the chosen phrase carries the same dit/dah rhythm.

Practice examples

Click any example to practice instantly.

Tip: stop “counting” dots/dashes. With repetition, you recognize patterns as shapes/rhythm.

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FAQ

How do I separate letters and words?

Letters are separated by spaces. Words are separated by /. Example: HELLO.... . .-.. .-.. ---.

Can I practice O in the translator?

Yes — open the translator with O prefilled.