"It takes a definite action to make it fire," he explained.

Well, we may learn something then, or at any rate must make up our minds to definite action.

Congress, however, took no definite action in resolving the dispute.

Despite the optimistic words there is little sign of definite action to follow them up.

It looks as if it's time to take definite action.

We need to be clear as to how that translates into definite action and will do this through:

Tomorrow some definite action might be taken to end this terrible dread.

No definite action has been taken to make that happen.

He then narrowed to a smaller area (apparently one individual, though this could not be certain) and got very definite action.

Paks felt the need to push for some definite action that night.