Englishfor English speakers
worth
Adjective
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If mathx/math is worth mathy/math, mathx/math has the value of mathy/math, usually in money.
The painting is worth over $1 million.
The house is worth $20000.
Excuse me, how much is this ring worth?
The car is fifteen years old and isn't worth much anymore.
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If something is worth doing, or is worth it, there is value in doing it. It's not a waste of time.
It's not worth washing now 'cause it'll just get dirty again later.
This is important, so it's worth taking your time to get it right.
worth
Noun
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The worth of something is its value.
I just bought $8,000 worth of gold.
Its worth is dropping every day.
knowing
Adjective
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A knowing look or smile tells someone that you know something.
"All set. Have a good weekend," she said with a knowing smile.