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WORLD BOOK P. 15
P is the 16th letter of our alphabet. It was also a letter in the alphabet used by the Semites, who once lived in Syria and Palestine. They named it pe, their word for mouth, and adapted an Egyptian hieroglyphic (picture symbol) meaning mouth to represent it. The ancient Greeks took the letter for their alphabet and called it pi. When the Romans adopted the Greek alphabet, they de- veloped the letter form that we use today. See Alphabet.
Uses. Por p is about the 18th most frequently used letter in books, newspapers, and other printed material in English. In chemistry, Pstands for phosphorus. Pis used as an abbreviation for post, as in P.S. for postscript. Post comes from the Latin word for after, and we also use it in p.m., or post meridiem, for afternoon. In bibli-
| P13580S | 999 WORLD B00K | Referensi | Available |
| P13581S | 999 WBI W | Sukma Library Corner | Available |
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