Third-person singular simple present indicative form of straighten.(verb)
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Use "straightens" in a sentence
"The inventor of the phrase straightens us all out on what it means, several different things, as it happens."
"This passage is not straight, but the passing of the sword straightens it."
"L Word star "straightens" up her hair and will play Dr. Miranda Foster, who according to CBS 'tip sheet, is a surgical fellow with a "rebellious streak and fiery temper.""