What is the difference between 'effect' and 'affect'? — Wajid, Chad
Most often, 'affect' is a verb and 'effect' is a noun. When 'affect' is used as a verb it means "to act on something and cause a change." When 'effect' is used as a noun it means "a change that results when something is done." Below are some examples of each word:
The bad weather will affect our ability to drive.
Our house wasn't affected by the power outage.
He hopes the new management will have a positive effect on customer satisfaction.
What effect does the medicine have on the heart?
The children were studying cause and effect in science.
We kept the problem from affecting our friendship.
Sometimes 'effect' is used as a verb to mean "to cause something to happen." It is often used in the phrase "to effect change."
The activists hoped to effect positive social change in their community.
Less commonly 'affect' is used as a noun to mean "the facial expressions that go along with an emotion."
The girl has a surprisingly flat [=emotionless] affect even when she's happy.
Most often when you see 'affect' it is a verb, and most often when you see 'effect' it is a noun.
I hope this helps.
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