column has 5 distinct synonyms spread across 5 of its 9 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a line of units following one after another
a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands
a vertical array of numbers or other information
“he added a column of numbers”
an article giving opinions or perspectives
a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
a page or text that is vertically divided
“the newspaper devoted several columns to the subject”
any tubular or pillar-like supporting structure in the body
Synonyms, antonyms and the broader and narrower relations for column come from Princeton University’s WordNet. Full sources and licences.