n a line of units following one after another
n 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
n a vertical array of numbers or other information
n anything that approximates the shape of a column or tower
n an article giving opinions or perspectives
n a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
n (architecture) a tall vertical cylindrical structure standing upright and used to support a structure
n a page or text that is vertically divided
n any tubular or pillar-like supporting structure in the body