He found that it takes only the actions of a few dozen fans to trigger a wave.

The action triggered a strike on June 24, 1983.

The basic idea of system thinking is that every action triggers a reaction.

Though legal, the action should have triggered reports of suspicious activity by the bank.

Items are at least partly visible, though some don't become "hot" until an action in the game triggers them.

They might also enjoy more complex toys, in which an action triggers a response.

Their actions trigger another trap, this one destroying the boat they were going to use in order to escape.

But I was afraid my words or actions might someday trigger that awful memory.

But other military men say that strong action against dissident soldiers in this delicate period could trigger a crisis.

These actions triggered criticism from both left and right.