Incorrect spelling, explanation: coloumn is an incorrect spelling, probably made by confusion between American English and British English. There are American words simplified in spelling, for example, our sound in British was shortened to or in American. This is not the case in column though. Column is spelled always as column and comes from the Latin word columna.

Correct spelling, explanation: column is the correct form because the word comes from the Latin columna. As you can see there is no ou sound, so coloumn is incorrect spelling. We are guessing that coloumn is a misspelling that came from the differences between British and American spellings (in such words as color – colour, etc). This distinction, however, only appears in our/or sounds. Column is not one of these words, so it has only one correct form. And this form is column.

Definition of column:
noun, in architecture: a supportive pillar, often decorative; in the military: a grouped soldiers, for example in a line; in journalism: a way a text is organised on a page
In his weekly newspaper column, the opinion writer discussed the latest political scandal and offered his analysis of the situation.
Soldiers formed a column on a military parade; they looked really impressive.

Incorrect spelling

Incorrect spelling

Incorrect spelling