1. けいさんき　   post, mail   calculator   picture   phone booth   Hint Half-n-half Clue   2. こうくうゆうびん   airmail   postman, mailman   televiewer   post box, mail box   Half-n-half Clue   3. ゆうびんりょうきん　   phone booth   mobile   postage   letter box   Half-n-half Clue   4. きって   post box, mail box   postage   post, mail   postage stamps   Half-n-half Clue   5. でんぽう　   television broadcasting   post and telegraph office   telecommunication satellite   telegram   Half-n-half Clue   6. きゅうこうかきとめ　   letter box   press   postage stamps   express registered   Half-n-half Clue   7. ゆうびんでんしんきょくしゃ   interview   calculator   postman, mailman   post and telegraph office   Half-n-half Clue