circuit breaker circuit board • circuit card · · · Info · Definitions · Synonyms · Characters · · circuit breaker · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a device that trips like a switch and opens the circuit when overloaded. Synonyms: circuit breaker, breaker. · · Noun Definition 1 Synonyms · · · breaker · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 k latin small letter k U+006B r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075