unnecessary

needlessness

(chemistry) amidine

necessary evil

珊々, 珊珊: / 毿々, 毿毿: / 潸々, 潸潸: / 燦々, 燦燦, 粲々, 粲粲: brilliant, bright

三々, 三三:

body

counter for humanoid objects

In general: the body, e.g. of a human or animal / substance; matter / form; shape / (algebra) field (commutative ring with invertible nonzero elements)

outward appearance; look; aspect