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Affect or effect? Canceled or cancelled? What does WYD mean? Quick answers, real examples and one memory trick for every word that trips you up.

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affect vs effect

Affect

Usually a verb. To change or influence.

Effect

Usually a noun. The result of a change.

  • The rain will affect our plans.
  • The rain had a big effect on our plans.
  • The rain will effect our plans.

Memory trick: Affect is the Action. Effect is the End result.

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Both spellings are correct. Canceled with one L is standard in American English. Cancelled with two Ls is preferred in British English. The noun cancellation keeps two Ls in both versions.

Use affect as a verb when something influences something else. Use effect as a noun for the result. Stress can affect sleep, and poor sleep has a clear effect on mood.

WYD stands for what are you doing. Friends send it to start a chat, check in or ask about plans. A simple reply is not much, what about you?

Use who when the word acts as the subject, like he or she. Use whom when it acts as the object, like him or her. If him fits the answer, choose whom.

Both are correct. Gray is the usual spelling in the United States. Grey is more common in the United Kingdom and other Commonwealth countries. Pick one and stay consistent.

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