"As I'm sure you know, there are many words in our mysterious and confusing language that can mean two completely different things. The word "bear", for instance, can refer to a rather husky mammal found in the woods, as in the sentence "The bear moved quietly toward the camp counselor, who was too busy putting on lipstick to notice," but it can also refer to how much someone can handle, as in the sentence "The loss of my camp counselor is more than I can bear." The word "yarn" can refer both to a colorful strand of wool, as in the sentence "His sweater was made of yarn," and to a long and rambling story, as in the sentence "His yarn about how he lost his sweater almost put me to sleep." The word "hard" can refer both to something that is difficult and something that is firm to the touch, and unless you come across a sentence like "The bears bear hard hard yarn yarns" you are unlikely to be confused."
-Lemony Snicket in A Series Of Unfortunate Events: The End.