Other forms: thicker; thickest; thicks
When something's thick, it's wide from one side to the other, like a thick piece of French toast or a thick layer of snow on your car.
Thick things are broad or bulky or decidedly not thin — think of the thick slab of ice you need in order to skate safely on a lake. Thick can also mean "dense," like a thick chocolate milkshake, or your sister's thick, curly hair. If the kid who sits beside you in math class sees your test grade and calls you thick, it's not a compliment: she means you're not very smart.
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