(cryptography) To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous.

The Delta variant of COVID-19.

A state of Nigeria in the South South geopolitical zone. Capital: Asaba. Largest city: Warri. / A census-designated place and unincorporated community in Clay County, Alabama.

simple past tense and past participle of delta

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.

Acronym of Diploma in Teaching English to Speakers of Other Languages, an advanced qualification to teach English, higher than the CELTA, accredited by the University of Cambridge.

plural of delta

present participle of delta

(music) A form of blues originating in the Mississippi Delta region of the United States, generally featuring minimal instrumentation and song structure.

(aeronautics) An aircraft wing having a swept-back shape in the form of an isosceles triangle; used mostly on supersonic aircraft