boundary,
bound,
edge the line or plane indicating the limit or extent of something
margin -
an amount beyond the minimum necessary; "the margin of victory"
amount the relative magnitude of something with reference to a criterion; "an adequate amount of food for four people"
margin of error,
margin of safety,
safety margin the margin required in order to insure safety; "in engineering the margin of safety is the strength of the material minus the anticipated stress"
margin -
the blank space that surrounds the text on a page; "he jotted a note in the margin"
blank space,
space,
place the unlimited expanse in which everything is located; "they tested his ability to locate objects in space"; "the boundless regions of the infinite"
margin -
the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities
