Δ.
D · X
The letter delta (δέλτα (délta)), the fourth letter of the ancient Greek alphabet.
Meaning & usage
The letter delta (δέλτα (délta)), the fourth letter of the ancient Greek alphabet.
Where this word comes from
From the Phoenician letter 𐤃 (d, “dālet”).
A digit 10 in the decimal acrophonic numeral system that predated the gematria system. An abbreviation of δέκα (déka, “ten”). Equivalent to the Roman numeral X.
Where this word comes from
From the Phoenician letter 𐤃 (d, “dālet”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.