vaulting box; vaulting horse
A piece of gymnastics equipment used for vaulting exercises. In Japanese school contexts, it often refers to the stackable box-like apparatus, but can also be used for the traditional horse-shaped vault.
I vaulted over the vaulting box in PE class.
I set the vaulting box to its highest level.
Search-only kanji form; not a standard spelling.
Rarely used kanji form; 跳び is preferred for the meaning 'vault'.
Abbreviated kanji form, less common but still encountered.
Compound of 跳び (tobi, 'jumping', the continuative form of 跳ぶ tobu) + 箱 (hako, 'box'). The kanji 跳 is specifically used for jumping or vaulting, distinguishing it from 飛 (to fly).