B1nounhealthsociety
US/ɪˈfekt/
UK/ɪˈfekt/
a change that happens because of something else; a result
In context
Social media has a strong effect on how teenagers see themselves.
This medicine may have some side effects, such as headaches.
The new traffic rules will come into effect next January.
Words that go with effect
noun + preposition
- effect onCoffee has a different effect on different people.
verb + noun
- have an effectThe new policy didn't have much effect.
noun + noun
- side effectFeeling sleepy is a common side effect of this medicine.
adjective + noun
- negative effectLong working hours have a negative effect on family life.
- positive effectRegular exercise has a positive effect on your mood.
- long-term effectWe don't yet know the long-term effects of the new drug.
verb + preposition
- come into effectThe new tax rules came into effect last month.
Common mistakes
Incorrect:
Stress has a bad effect to your health.Correct: Stress has a bad effect on your health.