“know-about”

The following 3 entries include the term know-about.

I don't know about him/her

idiom

—used to say that one is uncertain about someone

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I don't know about that

idiom

—used to express doubt about something

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I don't know about you/him/her/them

idiom

—used say that one is uncertain whether someone thinks or feels differently about something

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Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
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Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
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Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
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