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
Synonyms, antonyms and the broader and narrower relations for column come from Princeton University’s WordNet. Full sources and licences.
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