Signalling & Communication
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TermDefinition
- Flag / Pennant, Signals & Communication Code Flag Uniform (U)

The International Maritime Signal Flag Uniform.
Meaning
You are running into danger.
- Flag Semaphore, Signals & Communication Letter U (Flag Semaphore)

Flag semaphore indicating the letter U.
- Morse Code, Signals & Communication Letter U (Morse Code)
International Morse Code sequence representing the letter U.
- Phonetic Alphabet, Signals & Communication Uniform
Pronounced: YOU-nee-form
The term for the letter U in the NATO Phonetic Alphabet.

