A NAND gate is a type of digital logic gate that can be used to implement any logical function. It is composed of two inputs and one output. When both inputs are high, the output is low. In computer science or electrical engineering, alternative words or phrases can be used to refer to the NAND gate or to describe its function. Some synonyms for NAND gates include the negated AND gate, NOT-AND gate, and inverted AND gate. Additionally, the logical operator used to represent the NAND gate in boolean algebra can be written as a combination of a NOT and an AND operator.