(~s)
1.
A ~ is an object which is used to show the position of something, or is used to help someone remember something.
He put a ~ in his book and followed her out.
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2.
If you refer to something as a ~ for a particular quality or feature, you mean that it demonstrates the existence or presence of that quality or feature.
Vitamin C is a good ~ for the presence of other vitamins and nutrients in frozen food.
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3.
A ~ or a ~ pen is a pen with a thick tip made of felt, which is used for drawing and for colouring things.
Draw your child’s outline with a heavy black ~.
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