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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
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He muttered an apology and then left.
"That's a matter of opinion," she muttered under her breath.
Her husband muttered something about going out to find her.
He turned and went upstairs, muttering to himself.
This is the American English definition of mutter. View British English definition of mutter.
happy, excited, and full of energy
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