Quadruple and Tetrad

Quadruple noun - A set of four similar things considered as a unit.

Tetrad and quadruple are semantically related in four of something topic. In some cases you can use "Tetrad" instead the word "Quadruple" as an adjective or a noun, when it comes to topics like having four of something.

Nearby Words: quadruplet, quadrupling, quadrupled

Tetrad noun - The cardinal number that is the sum of three and one.

Quadruple and tetrad are semantically related in four of something topic. You can use "Quadruple" instead the word "Tetrad" as an adjective or a noun, if it concerns topics such as having four of something.