NATO Phonetic Alphabet
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40 free NATO Phonetic Alphabet trivia questions with answers — trivia quiz, new questions added Oct 2026.
Say a B, a D or a P over a crackling radio and nobody can tell them apart. The NATO phonetic alphabet fixes that by giving every letter its own unmistakable word, from Bravo to Zulu. It is used far beyond the military: by airline pilots, ship crews, police dispatchers and anyone who has ever spelled a surname to a call centre. This quiz checks whether you really know the code words, including the ones with odd official spellings and pronunciations. It also digs into where they came from: the wartime Able Baker alphabet, the linguists and listening tests behind the modern list, the special way aircrews say their numbers, and the signals, nicknames and place names the alphabet has left behind. It suits pilots in training, radio amateurs, cadets, quiz night regulars and anyone who has wondered why the letters sound the way they do on the air. Every answer comes with a short explanation, so you finish knowing the alphabet better than when you started.
30 of 40 questions with answers and explanations. Play the quiz
Q 01Which spelling of the NATO code word for A is official, chosen to suit non-English speakers?
Alfa
Alfa is the official spelling because speakers of some languages would not know to pronounce 'ph' as an f. Most European languages already write the word that way.
Q 02Which name do pilots say for 'message received', because it once stood for R in wartime alphabets?
Roger
Roger stood for R, short for 'received', in the British and American military alphabets of World War II. The habit stuck even after the letter was given a new code word.
Q 03On aviation radio, a time ending in the NATO code word 'Zulu' is given in which time standard?
UTC
UTC is the zero-offset time zone, which carries the letter Z, so a 'Zulu' time reads the same for every crew. The zones to its east and west take other letters of the alphabet.
Q 04In naval signalling, what does the two-flag hoist spelled 'Bravo Zulu' tell another ship's crew?
Well done
Well done is the meaning listed for the letter group BZ in the Allied naval signal book. The phrase has since spread from flag hoists and voice radio into written messages and email.
Q 05Which digit do pilots give an extra syllable so nobody mistakes it for the German word for 'no'?
Nine
Nine becomes 'niner' on the radio so that nobody hears the German 'nein'. The same rulebook respells a few other digits so they survive static and strong accents.
Q 06Which Cold War crossing in Berlin took its name from the NATO phonetic alphabet?
Checkpoint Charlie
Checkpoint Charlie was simply checkpoint C. Two other Allied checkpoints, on the autobahn route in from West Germany, took the letters A and B.
Q 07Atlanta controllers have often avoided one NATO code word because it is also which airline's radio callsign?
Delta
Delta is both the letter D and the callsign of the airline based in Atlanta, so 'Dixie' or 'David' often stood in for it there. One taxiway there was known as Dixie until 2020.
Q 08The NATO code word 'Lima' is also the Malay and Indonesian word for which number?
Five
Five is 'lima' in Malay and Indonesian, so the code word can be heard as a digit in the middle of a callsign.
Q 09NATO used its phonetic alphabet to name classes of which Soviet hardware, such as Oscar, Yankee and Victor?
Submarines
Submarines took their NATO reporting names from the spelling alphabet until the 1980s. Soviet planes followed another rule: bombers got B words such as Bear, and fighters F words such as Fulcrum.
Q 10Which HBO miniseries follows a WWII company nicknamed 'Easy', then the radio code word for E?
Band of Brothers
Band of Brothers follows E Company of the 506th Infantry Regiment, 101st Airborne. 'Easy' was simply how Allied radio operators said the letter until a new alphabet arrived in the 1950s.
Q 11Which dance gives the NATO phonetic alphabet its code word for the letter F?
Foxtrot
Foxtrot was settled by listening tests on speakers of 31 nationalities. Words were judged on how reliably they were understood alongside the rest of the alphabet, not on their own.
Q 12Which word became the NATO code word for N after its forerunner 'Nectar' kept being confused with 'Victor'?
November
November arrived last: NATO spent the first two months of 1956 still saying 'Nectar' before the final list took effect that March. The words have not changed since.
Q 13Which Shakespeare character's name is the NATO phonetic alphabet's code word for the letter R?
Romeo
Romeo is pronounced ROW-me-oh on the radio, in three distinct syllables. Official pronunciations were published for every word to iron out differences between national accents.
Q 21Which country's name is the NATO phonetic alphabet's code word for the letter I?
India
India has held the letter since the 1949 draft of the alphabet. It took over from 'Item', the word used in the wartime Able Baker alphabet.
Q 22Which NATO code word for S replaced 'Sugar', a word some Britons still use to spell names over the phone?
Sierra
Sierra is said 'see-AIR-rah', with the stress in the middle. It has held the letter since a 1949 draft of the alphabet, long before the final list was agreed.
Q 23Which of these two-syllable NATO code words is officially stressed on its second syllable, not its first?
Papa
Papa is officially 'pah-PAH'. The word took over the letter P from 'Polka', which had filled the slot in a 1949 draft of the alphabet.
Q 14How is the NATO code word for J officially spelled, so that French speakers do not drop its final sound?
Juliett
Juliett has a doubled final letter because French speakers may treat a single final t as silent. It is one of only two words in the list that break normal English spelling.
Q 15Which place name is the NATO phonetic alphabet's code word for Q, officially pronounced with a plain K sound?
Quebec
Quebec is said 'keh-BECK' on the radio, closer to French than to the usual English 'kwuh-BECK'. The same word already stood for Q in a telephone spelling alphabet in the 1920s.
Q 16Which alcoholic drink serves as the NATO phonetic alphabet's code word for the letter W?
Whiskey
Whiskey replaced the wartime 'William'. The word had already stood for W in the 'Ana Brazil' alphabet used in Latin America, where many English sounds were unfamiliar.
Q 17Which NATO code word for U replaced 'Union' when a handful of letters got new words in the final revision?
Uniform
Uniform came in with the 1956 revision, which changed only the words for C, M, N, U and X. Its first sound may be said 'you' or 'oo', a concession to non-English speakers.
Q 18Which NATO code word for X came back after its short-lived replacement, 'Extra', proved too easy to mishear?
X-ray
X-ray had stood for the letter in the wartime Able Baker alphabet. NATO itself writes it as a single word, Xray, so that nobody pronounces it as two.
Q 19Which NATO code word for E took over from 'Easy', the word used in the wartime Able Baker alphabet?
Echo
Echo dates from a 1949 draft whose words had to exist, with much the same spelling, in each of the aviation agency's three working languages.
Q 20Which NATO code word for H replaced 'How' from Able Baker and is stressed on its second syllable?
Hotel
Hotel is said 'ho-TELL', with the weight on the second syllable. The word reads almost identically in several European languages, which every candidate had to.
Q 24The NATO phonetic alphabet's words were chosen to suit speakers of English, French and which third language?
Spanish
Spanish was the third working language of the aviation agency behind the alphabet. A candidate qualified only if it was a live word, spelled much the same, in all three.
Q 25How are pilots taught to pronounce the digit 3 on the radio so that it is not garbled into 'sri'?
Tree
Tree is the official radio form, chosen so the digit is not mangled by non-English speakers. For the same reason a thousand becomes 'tousand'.
Q 26Radio operators say 'fife' for the digit 5 because its usual pronunciation is easily confused with which word?
Fire
Fire and the digit's everyday name are hard to tell apart over a crackling radio, so the v sound became a second f. The digit 4 changes too, stretching to 'fower'.
Q 27Which aviation body, not NATO itself, defined the alphabet known worldwide as the NATO phonetic alphabet?
ICAO
ICAO, the UN's civil aviation agency, defined the alphabet in 1955–56 and still publishes it for aircrews. NATO adopted the same list in 1956 and lent it the popular name.
Q 28Which Pacific atoll hosted the 1946 atomic tests Able and Baker, named from the US military's spelling alphabet?
Bikini
Bikini Atoll's two 1946 blasts took the first two words of the Joint Army/Navy alphabet. A planned third test, which would have carried the word for C, was cancelled.
Q 29British wartime slang 'ack-ack', built from army signallers' word for the letter A, described which weapons?
Anti-aircraft guns
Anti-aircraft guns were abbreviated AA, which British signallers read aloud as 'ack ack'. The German nickname for the same weapons, flak, is also a clipped official term.
Q 30Which radio procedure word tells a caller that an order was understood and will be carried out?
Wilco
Wilco is short for 'will comply'. Because it already acknowledges the message, pairing it with a separate word for 'received' is redundant.