助番[sukeban] leader of a female gang
ブロック番号[burokkubangou] block number
暗唱番号[anshoubangou] personal identification number
一貫番号[ikkanbangou] serial number
一番[ichiban] best

一番[hitotsugai] pair
一番鶏[ichibandori] first cockcrowing
一番手[ichibante] first player
一番乗り[ichibannori] leader of a charge
一番線[ichibansen] track no. 1

居炉裏[irori] sunken hearth
共裏[tomoura] lining a kimono with the same material as the kimono itself
胸裏[kyouri] one's heart
庫裏[kuri] monastery kitchen
交際場裏[kousaijouri] society

手裏剣[shuriken] shuriken
天井裏[tenjouura] above the ceiling
内裏[dairi] imperial palace
内裏びな[dairibina] festival dolls representing the emperor and the empress
脳裏[nouri] one's mind