Signalling & Communication
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TermDefinition
- Flag Semaphore, Number Number 0 (Flag Semaphore)

Flag semaphore indicating the Number 0. This shape represents both the Number 0 (Flag Semaphore) and the Letter K (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 0 (Morse Code)
International Morse Code sequence representing the number 0.
- Flag / Pennant, Signals & Communication Numeral 0 (Flag Pennant)

The flag represents the numerical value of zero.
- Flag Semaphore, Number Number 1 (Flag Semaphore)

Flag semaphore indicating the number 1. This shape is the Number 1 (Flag Semaphore) and the Letter A (Flag Semaphore).
Before delivering...
More Details - Morse Code, Signals & Communication Number 1 (Morse Code)
International Morse Code sequence representing the number 1.
- Flag / Pennant, Signals & Communication Numeral 1 (Flag Pennant)

The flag represents the numerical value of one.
- Flag Semaphore, Number Number 2 (Flag Semaphore)

Flag semaphore indicating the number 2. This shape is the Number 2 (Flag Semaphore) and the Letter B (Flag Semaphore).
Before delivering...
More Details - Morse Code, Signals & Communication Number 2 (Morse Code)
International Morse Code sequence representing the number 2.
- Flag / Pennant, Signals & Communication Numeral 2 (Flag Pennant)

The flag represents the numerical value of two.
- Number 2 - Two (Too)
"Too" refers to the number two or the second in a series of items or actions. It can denote the quantity of something, such as two boats, two...
More Details - Flag Semaphore, Number Number 3 (Flag Semaphore)

Flag semaphore indicating the Number 3. This shape represents both the Number 3 (Flag Semaphore) and the Letter C (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 3 (Morse Code)
International Morse Code sequence representing the number 3.
- Flag / Pennant, Signals & Communication Numeral 3 (Flag Pennant)

The flag represents the numerical value of three.
- Number 3 - Three (Tree)
Tree is a signal that indicates the number 3 in communication between vessels or personnel. This signal can be conveyed visually using hand...
More Details - Number 4 - Four (For Er)
"Four" is the numerical value representing the quantity of 4. In marine terminology, "four" is also used to refer to the fourth officer on a...
More Details - Flag Semaphore, Number Number 4 (Flag Semaphore)

Flag semaphore indicating the Number 4. This shape represents both the Number 4 (Flag Semaphore) and the Letter D (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 4 (Morse Code)
International Morse Code sequence representing the number 4.
- Number 5 - Five (Fife)
"Five" is a numerical term representing the quantity of 5. In marine terminology, it may refer to a group of five individuals or objects, such as...
More Details - Flag Semaphore, Number Number 5 (Flag Semaphore)

Flag semaphore indicating the Number 5. This shape represents both the Number 5 (Flag Semaphore) and the Letter E (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 5 (Morse Code)
International Morse Code sequence representing the number 5.
- Flag Semaphore, Number Number 6 (Flag Semaphore)

Flag semaphore indicating the Number 6. This shape represents both the Number 6 (Flag Semaphore) and the Letter F (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 6 (Morse Code)
International Morse Code sequence representing the number 6
- Number 6 - Six
In marine terminology, "6" or "six" does not have a specific nautical meaning. It is simply the numerical value representing the quantity of...
More Details - Flag Semaphore, Number Number 7 (Flag Semaphore)

Flag semaphore indicating the Number 7. This shape represents both the Number 7 (Flag Semaphore) and the Letter G (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 7 (Morse Code)
International Morse Code sequence representing the number 7.
- Number 7 - Seven (Sev-En)
In maritime terminology, 7 or Seven (Sev-En) refers to the International Code of Signals flag representing the letter "7" in the phonetic...
More Details - Number 8 - Eight (Ait)
In marine terminology, an "ait" refers to a small island or islet located in a river or estuary. Aits are typically formed by sediment deposition...
More Details - Flag Semaphore, Number Number 8 (Flag Semaphore)

Flag semaphore indicating the Number 8. This shape represents both the Number 8 (Flag Semaphore) and the Letter H (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 8 (Morse Code)
International Morse Code sequence representing the number 8.
- Number 9 - Nine (Nin Er)
In marine terminology, "9" or "nine" is a code used to indicate the number nine in radio communications or when spelling out numbers. This code...
More Details - Flag Semaphore, Number Number 9 (Flag Semaphore)

Flag semaphore indicating the Number 9. This shape represents both the Number 9 (Flag Semaphore) and the Letter I (Flag Semaphore).
Before...
More Details - Morse Code, Signals & Communication Number 9 (Morse Code)
International Morse Code sequence representing the number 9.

