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Delta (/ ˈ d ɛ l t ə /; [1] uppercase Δ, lowercase δ; Greek: δέλτα, délta, ) [2] is the fourth letter of the Greek alphabet. In the system of Greek numerals , it has a value of four. It was derived from the Phoenician letter dalet 𐤃. [ 3 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 February 2025. Letter names for unambiguous communication Not to be confused with International Phonetic Alphabet. Alphabetic code words A lfa N ovember B ravo O scar C harlie P apa D elta Q uebec E cho R omeo F oxtrot S ierra G olf T ango H otel U niform I ndia V ictor J uliett W hiskey K ilo X ray L ...
Delta commonly refers to: Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet; D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin ...
The spelling alphabet is now also defined in other unclassified international military documents. [3] The NATO alphabet appeared in some United States Air Force Europe publications during the Cold War. A particular example was the Ramstein Air Base Telephone Directory, published between 1969 and 1973 (currently out of print).
Acrophony (/ ə ˈ k r ɒ f ə n i /; Ancient Greek: ἄκρος, romanized: akros, lit. 'uppermost' + φωνή phone 'sound') is the naming of letters of an alphabetic writing system so that a letter's name begins with the letter itself.
A spelling alphabet is also often called a phonetic alphabet, especially by amateur radio enthusiasts, [1] recreational sailors in the US and Australia, [2] and NATO military organizations, [3] despite this usage of the term producing a naming collision with the usage of the same phrase in phonetics to mean a notation used for phonetic ...
Delta Middle Welsh (scholarly transcriptions) [9] /ð/ cf. Greek Δ δ: ᴇ: Small capital E FUT [2] /e̞̥/ ꬲ Blackletter E Teuthonista [4] ꬳ Barred E ꬴ E with flourish Ǝ ᴲ ǝ: Turned E Pan-Nigerian alphabet: Anii alphabet [11] / ə ~ ɨ / Awing alphabet [12] / e ~ ə / Kanuri alphabet [13] Lama alphabet [14] Lukpa alphabet [15] Turka ...
∆ may refer to: . Triangle (∆), one of the basic shapes in geometry. Many different mathematical equations include the use of the triangle.; Delta (letter) (Δ), a Greek letter also used in mathematics and computer science