Easy way to remember
Two short taps grow into one long.
EAdd a dot to reach E
IAdd a dot to reach I
UComplete U
Letter 21 of 26
U in Morse Code (..-)
U in Morse code is dot dot dash (· · −), said di-di-dah
Ready when you are.
3 signals7 units0.42 s at 20 WPM
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International Morse
U
di · di · dah
..-
How to tap U
Use un-der-STAND as a memory cue. Send dot dot dash. Hold each dash for three dot lengths and leave one dot length between signals.
Don’t mix it up with
D
D is dash dot dot (− · ·); U is dot dot dash (· · −). It reverses the signal order.
K
K is dash dot dash (− · −); U is dot dot dash (· · −). Compare the order and number of signals.
Words and names that start with U
| Word | Morse | Try it |
|---|---|---|
| Up | ..- .--. | Open in translator → |
| Under | ..- -. -.. . .-. | Open in translator → |
| Uma | ..- -- .- | Open in translator → |
| Umar | ..- -- .- .-. | Open in translator → |
Keep practicing
Questions people ask
What is U in Morse code?
U is dot dot dash (· · −), said di-di-dah
What does U mean on its own?
It represents the letter U. Any extra meaning depends on the operating context or the surrounding message.
How long does U take to send?
The pattern uses 7 units, including its internal gaps. At 20 WPM that is 0.42 seconds, before the next letter gap.
Which pattern is easy to confuse with U?
Compare D (− · ·) with U (· · −). Listen for the difference in signal order and length.
Checked against ITU-R M.1677-1 · Last reviewed · How we check our pages · Report it