a controlled burn set to clear away brush from fields / a fire set in a field / a wildfire / a will o' the wisp

Kyūjitai form of 薬品: drugs, medicines, chemical substances

metallurgy

unlucky year

loading and unloading (of cargo) / stevedore

load and unload (cargo)

also

a forged blade, such as a sword / the wavy pattern formed in the metal on the surface of a forged blade / a sword or similar edged weapon / something sharp like a sword / someone or something powerful

bad luck, evil

to be active (in), to participate actively (in)