a tall upright round post used as a support for a roof
an important member and active support
"science eroded the pillars of superstition"
"the test tube held a column of white powder"
"a tower of dust rose above the horizon"
"a thin pillar of smoke betrayed their campsite"
"he is a pillar of the community"
I saw, issuing from a squat chimney..a pillar of black smoke.
出自： Jan Morris