(n.) A border; edge; brink; verge; as, the margin of a river or
lake.
(n.) Specifically: The part of a page at the edge left uncovered
in writing or printing.
(n.) The difference between the cost and the selling price of an
article.
(n.) Something allowed, or reserved, for that which can not be
foreseen or known with certainty.
(n.) Collateral security deposited with a broker to secure him
from loss on contracts entered into by him on behalf of his principial,
as in the speculative buying and selling of stocks, wheat, etc.
(v. t.) To furnish with a margin.
(v. t.) To enter in the margin of a page.
