Play word 二項道路 二項道路 にこうどうろ road that is narrower than 4 meters but still counts as a valid connecting road for determining if construction is allowed on a plot adjacent to the road
Play word 二黒 二黒 じこく second of nine traditional astrological signs (corresponding to Saturn and southwest)
Play word 二四六九士 二四六九士 にしむくさむらい nishimuku samurai (mnemonic for remembering the months with fewer than 31 days)
Play word 二次創作 二次創作 にじそうさく derivative work (usu. unauthorized and produced by fans, e.g. dōjinshi, fanfiction)
Play word 二次避難所 二次避難所 にじひなんじょ evacuation shelter for people who require additional care (e.g. the elderly and disabled)