Synonyms

whether or not

Idioms

Also, whether or no. Regardless of whether, no matter if. For example, Whether or not it rains, we're going to walk to the theater, or She plans to sing at the wedding, whether or no anyone asks her to. The negative element in these constructions may also follow the subject and verb, as in I have to attend, whether I want to or not. [c. 1600]

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"So we tried to use satellite imagery to see whether or not they were still operational or if they had been destroyed."

From BBC • Apr. 11, 2026

Find out whether your adviser candidate is a member of the Financial Industry Regulatory Authority, and whether or not they operate under a dual-registered model.

From MarketWatch • Apr. 4, 2026

This could give clues as to whether or not the Federal Reserve is likely to raise interest rates to tackle rising inflation.

From The Wall Street Journal • Apr. 3, 2026

At his Senate confirmation hearing in November, Selig told senators he would defer to the courts on whether or not sports prediction markets should be regulated by the states as gambling.

From Barron's • Apr. 2, 2026

The stigma exists whether or not one has been formally branded a criminal, yet another parallel to Jim Crow.

From "The New Jim Crow" by Michelle Alexander

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023