setting off

present participle and gerund of set off

(idiomatic, intransitive) To leave; to set out; to begin a journey or trip.
(idiomatic, transitive) To begin; to cause; to initiate.
(idiomatic, transitive) To cause to explode, let off.
(idiomatic, transitive) To put into an angry mood; to start (a person) ranting or sulking, etc.
(idiomatic, transitive) To enhance by emphasizing differences.
(idiomatic, transitive) To offset, to compensate for: to reduce the effect of, by having a contrary effect.
(historical) To deface or soil the next sheet; said of the ink on a freshly printed sheet, when another sheet comes in contact with it before it has had time to dry.