1321. What character can be added to both of these characters to give other characters? 安_ -> _票

Answer:

安  AN, yasu(i) - peace, cheap

票  HYOU - paper slip, vote, ballot

Add 木:安+木 木+票 

木  MOKU, BOKU, ki - tree

案  AN - plan, proposal

標  HYOU - sign, mark