Brush your teeth.
Meaning: This means to use a toothbrush with toothpaste to clean your teeth and remove any food particles, plaque, or bacteria.
Choice of Words: The verb brush means to clean something by rubbing it with a brush. Your refers to something belonging to a particular person, in this case, the person being spoken to. Teeth are the hard, white structures in the mouth used for biting and chewing food. When you put them together, "Brush your teeth" is an instruction asking someone to clean their teeth using a toothbrush.
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Related Expressions