柱 - pillar, post, cylinder

prop; stay; support; brace; fulcrum

pillar; post

central pillar (of a building)

column; shaft; cylinder

utility pole; power pole; telephone pole; telegraph pole

nine pins; skittles

pentagonal prism

adductor muscle (of a bivalve)

cylinder; prism

fret (of a biwa)

tuning peg (on a biwa or shamisen)

kyphosis