A column is a tall, often decorated cylinder of stone which is built to honour someone or forms part of a building.

A column is something that has a tall narrow shape.

A column is a group of people or animals which moves in a long line.

On a printed page such as a page of a dictionary, newspaper, or printed chart, a column is one of two or more vertical sections which are read downwards.

In a newspaper or magazine, a column is a section that is always written by the same person or is always about the same topic.