内 （ナイ） within ..., inside ...

内科 （ナイカ） internal medicine, department of internal medicine

党内 （トウナイ） party-internal, within the party

校内 （コウナイ） within a school

内裏 （ダイリ） imperial palace, festival dolls representing the emperor and the empress

内府 （ナイフ） Minister of the Interior (669-1868), Lord Keeper of the Privy Seal (1885-1945)

境内 （ケイダイ） grounds (esp. of shrines and temples), compound, churchyard, precincts

海内 （カイダイ） the whole country

内 （うち） inside, within, while (e.g. one is young), during, within (e.g. a day), in the course of, among, amongst, (out) of, between, in (secret, chaos, poverty, etc.), amidst, with (e.g. success), within oneself, one's feelings, inner thoughts, we, our company, our organization, one's home, one's family, my spouse, my husband, my wife, signed on behalf of (husband's name) by his wife, I, me, imperial palace grounds, emperor

内々 （うちうち） private, confidential, informal, secret, (within the) family circle, (on the) inside

幕内 （まくうち） makuuchi, top division (of professional sumo)

お家 （おうち） your home, your family, their home, their family, (my) home