This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The fourth letter of the Greek alphabet. See Table at alphabet.

n. An object shaped like a triangle.

n. A usually triangular alluvial deposit at the mouth of a river.

n. A similar deposit at the mouth of a tidal inlet, caused by tidal currents.

n. Mathematics A finite increment in a variable.

n. The fourth letter of the modern Greek alphabet Δ, δ.

n. A landform at the mouth of a river where it empties into a body of water.

n. The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.

n. The symbol Δ.

n. A small but noticeable effect, compare with epsilon.

n. The set of differences between two versions of a file.

n. The angle subtended at the center of a circular arc.

n. The fourth letter of the Greek alphabet (Δ δ), corresponding to d.

n. A tract of land shaped like the letter delta (Δ), especially when the land is alluvial and inclosed between two or more mouths of a river.

n. The closed figure produced by connecting three coils or circuits successively, end for end, esp. in a three-phase system; -- often used attributively

n. The name of the Greek letter Δ, δ, answering to the Latin and English D. See D.

n. A triangular island or alluvial tract included between the diverging branches of the mouth of a great river: as, the delta of the Nile, of the Ganges, of the Mississippi, etc.

n. In anatomy, a triangular space or surface.

n. an object shaped like an equilateral triangle

n. a low triangular area of alluvial deposits where a river divides before entering a larger body of water

n. the 4th letter of the Greek alphabet

"The term "delta" originally was used to measure risk in options to buy or sell stocks"

equilateral triangle    equiangular triangle    alluvial sediment    alluvial deposit    alluvium    alluvion    geological formation    formation    letter    letter of the alphabet   

delta fornicis    delta mesoscapulæ    IPA examples    deltoid   

d   

delta wing    delta particle    delta iron    delta metal    delta connection   

gamma    theta    beta    airline    peninsula    Lowlands    lambda    volatility    Vega    marsh