本屋: bookstore; publisher; main building

本質: essence, nature (intrinsic quality)

本音: real intention; motive

本会: formal meeting; this organization / 本懐: long-held desire

本尊: idol in a temple

本土: mainland

他所, 他処: another place; moving to another place / 他書: another book

初回: first time

The hiragana syllable しょ (sho). Its equivalent in katakana is ショ (sho).

初年: The first year that something is begun; the early years of a period. / 所念: What one thinks, one's thoughts. / 初念: One's first thought or decision. / 諸念: Various thoughts.