set off

/S EH1 T AO1 F/
verb
  1. 1

    To leave; to begin a journey or trip.

    โ€œHe set off in search of better opportunities.โ€

  2. 2

    To begin; to cause; to initiate.

    โ€œI had no idea that one simple comment would set off such a huge argument.โ€

  3. 3

    To cause to explode, let off.

    โ€œWhat a tragedy, that someone would set off a bomb in a crowded place.โ€

  4. 4

    To make angry.

    โ€œDon't set him off or he won't shut up all day.โ€

  5. 5

    To enhance by emphasizing differences.

    โ€œHer plain white dress was set off by a bright red stole.โ€

  6. 6

    To offset, to compensate for: to reduce the effect of, by having a contrary effect.

    โ€œMy taxes did not increase because the amount of my raise was set off by my losses in the stock market.โ€

  7. 7

    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.

Source: https://en.wiktionary.org/wiki/set%20off