A margin is the empty space around the edges of a page, or the border of an area. It can also mean the amount by which something wins, loses, or differs from another amount.
From Latin 'margo' meaning 'edge' or 'border', through Old French 'marge'. The idea of an edge expanded into the idea of extra space or difference.
Margins are like safety buffers—on paper, in time, and in money. A 'narrow margin of victory' and a 'page margin' both describe a thin strip of space between comfort and danger.
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