Japanese 背

→ Japanese 外 (compound)

→ Japanese 外 (compound)

→ Japanese 背比べ (mention)

→ Japanese 背筋 (affix)

→ Japanese 背黒ジャッカル (compound)

→ Japanese 妹背 (affix)

→ Japanese 背屈 (affix)

→ Japanese 闊背筋 (affix)