For the Wikipedia policy, see . Text sometimes exhibits case sensitivity; that's, words can differ in meaning based on differing use of uppercase and lowercase letters. Words with capital letters don't always have the same meaning when written with lowercase letters. For example, Bill's the first name of former U.S. president William Clinton, who could sign a bill (which's a proposed law that was approved by Congress). And a Polish person can use polish to clean something. In food, the Calorie… (More on Case-sensitive)