touch off touch needle • touch on · · · Info · Definitions · Synonyms · Characters · · touch off · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (verb) put in motion or move to act. Synonyms: trip, actuate, trigger, activate, set off, spark off, spark, trigger off, touch off. Examples: "Trigger a reaction." "Actuate the circuits." · · Verb Definition 1 Synonyms · · · trip · · Synonym 1 actuate · · Synonym 2 trigger · · Synonym 3 activate · · Synonym 4 set off · · Synonym 5 spark off · · Synonym 6 spark · · Synonym 7 trigger off · · Synonym 8 Characters · · space U+0020 c latin small letter c U+0063 f latin small letter f U+0066 h latin small letter h U+0068 o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075