Is DELTA a Wordle Word?

Yes. DELTA is a valid Wordle word.

It was the Wordle answer on September 2, 2021 (#75).

Since February 2026, Wordle sometimes reuses past answers, so it could be the answer again.

What does DELTA mean?

/ˈdɛltə/

The fourth letter of the modern Greek alphabet Δ, δ.
A landform at the mouth of a river where it empties into a body of water.“Nile Delta”
The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.

10 more noun definitions

The symbol Δ.
A small but noticeable effect. Compare epsilon.“This will slow the main code path down, but only by delta.”
The set of differences between two versions of a file.“When you update the file, the system will only save the deltas.”
A change in a quantity, likely from "d" for "difference".“ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)”
The angle subtended at the center of a circular arc.
A type of cargo bike that has one wheel in front and two in back.
The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.“delta winding; delta connection; delta current”
The rate of change in an option value with respect to the underlying asset's price.
A value in delta notation indicating the relative abundances of isotopes.
(U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.

Definition from Wiktionary, available under the CC BY-SA license.

Starter word rating: GoodIn the top 4% of all valid Wordle words for testing common letters.
Vowels: E, A
Unique letters: 5 of 5
Common letters: E, L, T, A

Letter ratings use how often each letter appears in Wordle answers.

Tap its tiles to the colours Wordle showed, and the Wordle Solver lists every word that still fits, with the best next guess.