take effect
to start to produce results

[TahlilGaran] Dictionary of Contemporary English ▲

take effect
to start working.
The medicine takes effect in less than a half hour.

New voter registration laws took effect last year.

[TahlilGaran] English Idioms Dictionary ▲

take effect
a law or rule becomes effective or in use; to become legally operative, to begin
There is a new law related to Internet advertising that will soon take effect.

The new traffic laws took effect early last month.

[TahlilGaran] English Idioms Dictionary ▲

take effect
v. phr.
1. To have an unexpected or intended result; cause a change.
It was nearly an hour before the sleeping pill took effect.
2. To become lawfully right, or operative.
The new tax law will not take effect until January.

[TahlilGaran] English Idioms Dictionary ▲