An or circuit, sometimes referred to as a disjunction, is a logical circuit that works by producing a true output whenever one or more of its inputs are true. If you're looking for synonyms for the term or circuit, there are several alternatives you could use, depending on the context. For example, you might refer to an or gate, a logical disjunct, or simply a disjunction circuit. Other possible options might include a binary adder or a Boolean circuit, although these terms may be more specific to certain types of or circuits. Ultimately, the choice of synonym will depend on the specific application and context in which the circuit is being used.