What is the meaning of column?

noun

• 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: chromatography column
• A vertical array of numbers or other information.
  • usage: "he added a column of numbers"
• Anything that approximates the shape of a column or tower.
  • usage: "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"
  • synonyms: tower, pillar
• An article giving opinions or perspectives.
  • synonyms: editorial, newspaper column
• A vertical cylindrical structure standing alone and not supporting anything (such as a monument.
  • synonyms: pillar
• Architecture) a tall vertical cylindrical structure standing upright and used to support a structure.
  • synonyms: pillar
• A page or text that is vertically divided.
  • usage: "the newspaper devoted several columns to the subject"; "the bookkeeper used pages that were divided into columns"
• Any tubular or pillar-like supporting structure in the body. .