1.  margin(n = noun.shape) border, perimeter - the boundary line or the area immediately inside the boundary;
is a kind of bound, boundary, edge
has particulars: lip
Derived form adjective marginal₁

2.  margin(n = noun.attribute) - an amount beyond the minimum necessary; "the margin of victory"
is a kind of amount
has particulars: margin of error, margin of safety, safety margin, narrow margin, narrowness, slimness

3.  margin(n = noun.possession) security deposit - the amount of collateral a customer deposits with a broker when borrowing from the broker to buy securities;
is a kind of deposit, down payment

4.  margin(n = noun.possession) gross profit, gross profit margin - (finance) the net sales minus the cost of goods and services sold;
is a kind of earnings, lucre, net, net income, net profit, profit, profits

5.  margin(n = noun.communication) - the blank space that surrounds the text on a page; "he jotted a note in the margin"
is a kind of blank space, place, space
is a part of page

6.  margin(n = noun.attribute) allowance, leeway, tolerance - a permissible difference; allowing some freedom to move within limits;
is a kind of disagreement, discrepancy, divergence, variance

1.  A border; edge; brink; verge; as, the margin of a river or lake. [1913 Webster]

2.  Specifically: The part of a page at the edge left uncovered in writing or printing. [1913 Webster]

3.  The difference between the cost and the selling price of an article. [1913 Webster]

4.  Something allowed, or reserved, for that which can not be foreseen or known with certainty. [1913 Webster]

5.  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. It is usually less than the full value of the security purchased, in which case it may be qualified by the portion of the full value required to be deposited; as, to buy stocks on 50% margin. N. Biddle. [1913 Webster]

1.  To furnish with a margin. [1913 Webster]

2.  To enter in the margin of a page. [1913 Webster]

margin, n. & v.
--n.
1 the edge or border of a surface.
2 a the blank border on each side of the print on a page etc. b a line ruled esp. on exercise paper, marking off a margin.
3 an amount (of time, money, etc.) by which a thing exceeds, falls short, etc. (won by a narrow margin; a margin of profit).
4 the lower limit of possibility, success, etc. (his effort fell below the margin).
5 Austral. an increment to a basic wage, paid for skill.
6 a sum deposited with a stockbroker to cover the risk of loss on a transaction on account.
--v.tr. (margined, margining) provide with a margin or marginal notes.

Idiom:
margin of error a usu. small difference allowed for miscalculation, change of circumstances, etc. margin release a device on a typewriter allowing a word to be typed beyond the margin normally set.

Etymology:
ME f. L margo -ginis

N  redundancy, redundance, too much, too many, superabundance, superfluity, superfluence, saturation, nimiety, transcendency, exuberance, profuseness, profusion, repletion, enough in all conscience, satis superque, lion's share, more than enough, plethora, engorgement, congestion, load, surfeit, sickener, turgescence, overdose, overmeasure, oversupply, overflow, inundation, avalanche, accumulation, heap, drug, drug in the market, glut, crowd, burden, excess, surplus, overplus, epact, margin, remainder, duplicate, surplusage, expletive, work of supererogation, bonus, bonanza, luxury, intemperance, extravagance, exorbitance, lavishment, pleonasm, too many irons in the fire, embarras de richesses, redundant, too much, too many, exuberant, inordinate, superabundant, excessive, overmuch, replete, profuse, lavish, prodigal, exorbitant, overweening, extravagant, overcharged, supersaturated, drenched, overflowing, running over, running to waste, running down, crammed to overflowing, filled to overflowing, gorged, ready to burst, dropsical, turgid, plethoric, obese, superfluous, unnecessary, needless, supervacaneous, uncalled for, to spare, in excess, over and above, de trop, adscititious, supernumerary, on one's hands, spare, duplicate, supererogatory, expletive, un peu fort, over, too, over and above, overmuch, too much, too far, without measure, beyond measure, out of measure, with a to spare, over head and ears, up to one's eyes, up to one's ears, extra, beyond the mark, acervatim, it never rains but it pours, fortuna multis dat nimium nulli satis, Degree of Subservience.

N  freedom, liberty, independence, license, facility, scope, range, latitude, play, free play, full play, free scope, full scope, free stage and no favor, swing, full swing, elbowroom, margin, rope, wide berth, Liberty Hall, franchise, denization, free man, freed man, livery man, denizen, autonomy, self-government, liberalism, free trade, noninterference, Monroe Doctrine, immunity, exemption, emancipation, enfranchisement, affranchisement, free land, freehold, allodium, frankalmoigne, mortmain, bushwhacker, freelance, free thinker, free trader, independent, free, free as air, out of harness, independent, at large, loose, scot-free, left alone, left to oneself, in full swing, uncaught, unconstrained, unbuttoned, unconfined, unrestrained, unchecked, unprevented, unhindered, unobstructed, unbound, uncontrolled, untrammeled, unsubject, ungoverned, unenslaved, unenthralled, unchained, unshackled, unfettered, unreined, unbridled, uncurbed, unmuzzled, unrestricted, unlimited, unmitigated, unconditional, absolute, discretionary, unassailed, unforced, uncompelled, unbiassed, spontaneous, free and easy, at ease, at one's ease, degage, quite at home, wanton, rampant, irrepressible, unvanquished, exempt, freed, freeborn, autonomous, freehold, allodial, gratis, eleutherian, unclaimed, going a begging, freely, ad libitum, ubi libertas ibi patria, free white and twenty-one.

N  space, extension, extent, superficial extent, expanse, stretch, hyperspace, room, scope, range, field, way, expansion, compass, sweep, swing, spread, dimension, length, distance, size, volume, hypervolume, latitude, play, leeway, purchase, tolerance, room for maneuver, spare room, elbow room, house room, stowage, roomage, margin, opening, sphere, arena, open space, free space, void, waste, wildness, wilderness, moor, moorland, campagna, abyss, unlimited space, infinity, world, ubiquity, length and breadth of the land, proportions, acreage, acres, acres and perches, roods and perches, hectares, square miles, square inches, square yards, square centimeters, square meters, yards (clothing), ares, arpents, spacious, roomy, extensive, expansive, capacious, ample, widespread, vast, world-wide, uncircumscribed, boundless, shoreless, trackless, pathless, extended, extensively, wherever, everywhere, far and near, far and wide, right and left, all over, all the world over, throughout the world, throughout the length and breadth of the land, under the sun, in every quarter, in all quarters, in all lands, here there and everywhere, from pole to pole, from China to Peru, from Indus to the pole, from Dan to Beersheba, from end to end, on the face of the earth, in the wide world, from all points of the compass, to the four winds, to the uttermost parts of the earth.

N  edge, verge, brink, brow, brim, margin, border, confine, skirt, rim, flange, side, mouth, jaws, chops, chaps, fauces, lip, muzzle, threshold, door, porch, portal, coast, shore, frame, fringe, flounce, frill, list, trimming, edging, skirting, hem, selvedge, welt, furbelow, valance, gimp, border, marginal, skirting, labial, labiated, marginated.

gross margin, gross profit margin, margin account, margin call, margin of error, margin of profit, margin of safety, narrow margin, profit margin, safety margin