Military Alphabet: Letters, Code Words and How Troops Use It

The military alphabet is the set of 26 code words, Alfa through Zulu, that soldiers, sailors and aircrew use to spell letters over the radio. It is the same list as the NATO phonetic alphabet, so “military alphabet” and “NATO alphabet” mean the same thing. Troops use it because one misheard letter in a grid reference or call sign can cause serious mistakes.

On this page

1. Military Alphabet Chart
2. Why the Military Uses a Phonetic Alphabet
3. How Troops Use the Military Alphabet
4. Military Alphabet Numbers
5. Radio Discipline: Using the Military Alphabet Well
6. Military Slang Built From the Alphabet
7. From Able Baker to Alfa Bravo: History of the Military Alphabet
8. Who Else Uses the Military Alphabet?
9. Tips for Learning the Military Alphabet
10. Final Thoughts on the Military Alphabet
11. Frequently Asked Questions

Military Alphabet Chart

The chart below shows each letter, its military code word and the standard pronunciation. In addition, the last column shows the World War II word for comparison, so you can see how much the list changed. Click any code word for its full letter page.

Letter	Military Code Word	Pronunciation	WW2 Word (Able-Baker)
A	Alfa (Alpha)	AL-fah	Able
B	Bravo	BRAH-voh	Baker
C	Charlie	CHAR-lee (or SHAR-lee)	Charlie
D	Delta	DELL-tah	Dog
E	Echo	ECK-oh	Easy
F	Foxtrot	FOKS-trot	Fox
G	Golf	golf	George
H	Hotel	hoh-TELL	How
I	India	IN-dee-ah	Item
J	Juliett (Juliet)	jew-LEE-ett	Jig
K	Kilo	KEY-loh	King
L	Lima	LEE-mah	Love
M	Mike	mike	Mike
N	November	no-VEM-ber	Nan
O	Oscar	OSS-cah	Oboe
P	Papa	pah-PAH	Peter
Q	Quebec	keh-BECK	Queen
R	Romeo	ROW-me-oh	Roger
S	Sierra	see-AIR-rah	Sugar
T	Tango	TANG-go	Tare
U	Uniform	YOU-nee-form (or OO-nee-form)	Uncle
V	Victor	VIK-tah	Victor
W	Whiskey	WISS-key	William
X	X-ray	ECKS-ray	X-ray
Y	Yankee	YANG-key	Yoke
Z	Zulu	ZOO-loo	Zebra

Note that the official spellings are “Alfa” and “Juliett”. Many military manuals and websites, however, print the more familiar “Alpha” and “Juliet”. Either way, the spoken word is the same.

Why the Military Uses a Phonetic Alphabet

Radio is noisy. Engines, wind, gunfire and weak signals all chew up speech. On top of that, many letters sound alike: B, C, D, E, G, P, T, V and Z all rhyme. So a spoken “D” could easily come across as “B” or “T”.

The military alphabet solves this by giving every letter a distinct word. “Delta” sounds nothing like “Bravo” or “Tango”, even when half the word is lost. As a result, a map reference or a target code arrives exactly as it was sent.

Coalition work adds another reason. NATO forces from many countries need to talk to each other on the same nets. Because the words were chosen to be pronounceable by English, French and Spanish speakers, they work across language barriers far better than older lists.

How Troops Use the Military Alphabet

Spelling words is only the start. The alphabet runs through almost every part of military communication, and it shows up in places civilians might not expect.

Call signs and radio traffic

Units and individuals often have call signs built from letters and numbers. On the radio, operators speak them with code words, such as “Bravo Two-Six”. Messages follow strict voice procedure, which keeps transmissions short and clear. Procedure words like “Over”, “Out” and “Wilco” sit alongside the alphabet; our guide to radio prowords explains them.

Unit names

Companies within a battalion often take letter names. That’s why you hear of “Alpha Company”, “Bravo Company” and “Charlie Company”. Similarly, smaller teams, checkpoints and phases of an operation may carry letter designations.

Grid references and locations

Military maps use grid systems that mix letters and digits. Reading a grid square aloud with code words, then the numbers with standard pronunciations, cuts the chance of a costly error. Objectives and landing zones are also commonly named with letters, for example “LZ Echo”.

Time zones

The armed forces label time zones with letters too. Most famously, “Zulu” means Coordinated Universal Time (UTC), so “0600 Zulu” is 6 a.m. UTC. Local time zones get other letters. Our explainers on Zulu time and military time cover this in detail.

Military Alphabet Numbers

Numbers follow their own standard pronunciation. Military radio operators generally use the ICAO forms, although exact habits can vary by country and service.

Number	Spoken As
0	ZE-RO
1	WUN
2	TOO
3	TREE
4	FOW-ER
5	FIFE
6	SIX
7	SEV-EN
8	AIT
9	NIN-ER

For instance, the grid “47” becomes “Fower Seven”, and the call sign “B9” becomes “Bravo Niner”. The odd-looking forms help each number stand out. “Niner” avoids confusion with the German “nein”, while “fife” stays clear of “fire”. Read more on our phonetic alphabet numbers page.

Radio Discipline: Using the Military Alphabet Well

Knowing the words is one thing. Using them under pressure is another, which is why military training stresses radio discipline. The idea is simple: say only what is needed, say it clearly, and say it the standard way.

A few habits make the biggest difference:

• Think before you key the mic. Plan the message first, so you don’t pause mid-transmission and block the net.
• Speak at an even pace. Give each code word its full shape, then leave a short gap before the next one.
• Use only standard words. Improvised words like “B as in Boston” force the listener to guess.
• Read back critical details. For example, the receiver often repeats a grid reference so the sender can confirm it.
• Ask, don’t assume. If you miss part of a message, use the proword “Say again” rather than guessing.

A simple worked example

Imagine a patrol reporting its position as grid square “NK 4817”. On the radio, that becomes:

November Kilo, Fower Eight Wun Seven

The receiver then reads it back the same way. Because both sides use the same words and number forms, there’s almost no room for error. In contrast, “N-K-48-17” spoken quickly could easily turn into “M-K-48-70”.

Military Slang Built From the Alphabet

Because troops use the alphabet all day, it has leaked into everyday military speech. Many phrases started as abbreviations spoken in code words. Here are some well-known examples:

• Bravo Zulu means “well done”. It began as a naval signal; see our page on Bravo Zulu meaning.
• Oscar Mike stands for “on the move”.
• Charlie Mike stands for “continue mission”.
• Tango is often slang for a target or an enemy.
• Victor Charlie, or just “Charlie”, was US slang for the Viet Cong during the Vietnam War.
• Whiskey Tango Foxtrot is a polite way to say an impolite phrase. Our Whiskey Tango Foxtrot guide covers it and its cousins.

You can find many more in our list of military slang terms. Keep in mind that slang varies a lot between countries, services and eras, so not every term is universal.

From Able Baker to Alfa Bravo: History of the Military Alphabet

Militaries have used spelling alphabets since the early days of field telephones and radio. However, those early lists changed often and differed between countries. The British RAF, for example, used words such as Ace, Beer and Charlie between the wars.

During World War II, US forces used the Joint Army/Navy alphabet, often called “Able Baker” after its first two words. British forces also adopted it later in the war. It worked well for English speakers, but words like “Item” and “Yoke” were harder for others.

After the war, international aviation and military bodies worked on a list that suited speakers of many languages. Following some testing and revisions, the current alphabet took over in the mid-1950s, and NATO adopted it for its forces. That is why it is so often called the NATO alphabet. Our guide to the WW2 phonetic alphabet compares the two lists side by side, and the Naval History and Heritage Command holds further historical material.

Military alphabet vs police alphabet

Civilians sometimes mix up the military alphabet with the one heard on police dramas. Many US police departments still use the APCO alphabet, which starts “Adam, Boy, Charles”. That list is a separate system with a different history. Our police phonetic alphabet page compares the two.

Who Else Uses the Military Alphabet?

Although people call it the military alphabet, civilians use it just as much. Pilots and air traffic controllers rely on it for every call sign, as our aviation phonetic alphabet guide explains. Likewise, ship crews, coast guards and amateur radio operators all use the same 26 words. Even call centers and banks now train staff to spell names and account codes this way. So learning it pays off well beyond the armed forces.

Tips for Learning the Military Alphabet

Recruits are expected to know the alphabet early, but anyone can learn it quickly. These steps work well:

1. Learn it in chunks. First, memorize A to F, then G to L, and so on.
2. Spell what you see. Next, read car plates, street names and signs in code words.
3. Say it out loud. Pronunciation matters on the radio, so practice speaking, not just reading.
4. Test yourself. Finally, use flashcards or our phonetic alphabet quiz until recall is instant.

For a structured plan, see how to memorize the phonetic alphabet. Then print a copy of our printable chart to keep nearby while you practice.

Final Thoughts on the Military Alphabet

The military alphabet is simply the NATO phonetic alphabet in uniform. Its 26 words keep radio messages clear, give units their names and even shape military slang. Once you know Alfa to Zulu, plus the special number forms, you can spell anything the way the armed forces do.