Definitions
the cardinal number that is the sum of three and one
Word origin
From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad.
Used in a sentence
“Religious movements and cults are often founded on a tetrad of elements: a prophet, a prophecy, a book, and a revelation.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Set of four”6 letters
02“Group of four”6 letters
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