Definition of Ought

must or should

Examples of Ought in a sentence

After being insulted for the tenth time that day, the store clerk thought there ought to be a law against rudeness.  🔊

After studying the terms for biology class every day, the class ought to make a good grade on the quiz.  🔊

When I read the training manual cover to cover with the material I had already experienced, I ought to know how to do the job.  🔊

Since the woman sang the national anthem many times, she ought to know the lyrics by heart.  🔊

Because the girl was failing all of her classes at school, she knew she ought to study every day.  🔊

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