1. きって   postage stamps   post, mail   postage   airmail   Hint Half-n-half Clue   2. こうくうゆうびん   airmail   aerial   express registered   voice-mail   Half-n-half Clue   3. ゆうびんでんしんきょくしゃ   picture   post, mail   calculator   post and telegraph office   Half-n-half Clue   4. けいたいでんわ　   post, mail   postman, mailman   express registered   mobile   Half-n-half Clue   5. きゅうこうかきとめ　   postage stamps   post and telegraph office   script   express registered   Half-n-half Clue   6. ゆうびんりょうきん　   airmail   phone booth   postage   post box, mail box   Half-n-half Clue   7. ゆうびんばこ　   interview   post box, mail box   telegram   phone booth   Half-n-half Clue