fighting
鬪 centers on conflict and physical struggle: the act of fighting.
鬪 is a traditional form of 闘, combining the fighting enclosure 鬥 with phonetic and semantic elements inside. The inner part likely relates to the sound and the idea of conflict.
The outer enclosure 鬥 depicts two warriors facing off. Inside, the components suggest a clash over beans (豆) measured by a hand (寸), as if fighting over resources.
For トウ, imagine two fighters in a toe-to-toe brawl inside the 鬥 enclosure: toe -> トウ, and they are locked in combat.