circuit card circuit breaker • circuit court · · · Info · Definitions · Synonyms · Characters · · circuit card · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities. Synonyms: circuit board, circuit card, board, card, plug-in, add-in. · · Noun Definition 1 Synonyms · · · circuit board · · Synonym 1 board · · Synonym 2 card · · Synonym 3 plug-in · · Synonym 4 add-in · · Synonym 5 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 i latin small letter i U+0069 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075