御化け屋敷[obakeyashiki] haunted house
奥座敷[okuzashiki] inner parlor
下屋敷[shimoyashiki] villa
下敷[shitajiki] desk pad
宜敷く[yoroshiku] well

居敷[ishiki] kimono seat lining
坐敷[zashiki] tatami room
桟敷[sajiki] reviewing stand
上屋敷[kamiyashiki] daimyo's main Tokyo mansion
倉敷[kurashiki] storage charges

布衍[fuen] expatiation
衍文[enbun] (inadvertent) redundancy in a text

衍字[enji] (inadvertent) insertion of a character in a text