(anatomy) skeleton; a firm structure made up of bones that supports the body and its organs / the basis that forms something; a framework

the act of fighting each other; a fight or grapple / tackling a difficult problem

fight, scuffle / struggle with a problem

Kyūjitai form of 計画 (“plan”).

diffusion, scattering, spread / (physics) diffusion

to scatter, to spread

clear, distinct

arrangement, scheme, plan

arrange

demarcation