1. (n.) A border; edge; brink; verge; as, the margin of a river or lake.

2. (n.) Specifically: The part of a page at the edge left uncovered in writing or printing.

3. (n.) The difference between the cost and the selling price of an article.

4. (n.) Something allowed, or reserved, for that which can not be foreseen or known with certainty.

5. (n.) Collateral security deposited with a broker to secure him from loss on contracts entered into by him on behalf of his principal, as in the speculative buying and selling of stocks, wheat, etc.

6. (v. t.) To furnish with a margin.

7. (v. t.) To enter in the margin of a page.

abut adjoin aesthetic distance air space allowance ample scope balance bank befringe bind blank check board bonus border bordure bound boundary line bounds brim brink brow caesura carte blanche caution caution money clearance coast collateral collateral security compass connect deep space delicacy delicate distinction deposit depths of space differentia differential discontinuity distance distance between distinction divergence dividend double space edge elbowroom em space en space enframe exhaust price extent extra farness featheredge field fine point flange forfeit frame free course free hand free play free scope freeboard freedom fringe frontier full scope full swing gratuity hair space hairline half space headroom hem hiatus infinity interim intermediate space interruption interspace interstice interval join jump labellum labium labrum lacuna lagniappe lap latitude leap ledge leeway leftover length light-years limb limbus limits line lip list long rope maneuvering space march marge marginate mileage minimum narrow margin neighbor nice distinction nicety no holds barred nuance open space outline overage overmeasure overplus overrun overset overstock oversupply parsecs particle of difference perimeter periphery perspective piece play plus point of difference pourboire purfle purl ragged edge range reach refinement remainder remoteness rim room room to spare rope scope sea room selvage separation set off shade of difference shoestring margin shore side sideline single space skirt something extra space space between span spare spare room stake stretch stride subtle distinction subtlety surplus surplusage surround swing thin margin time interval tip tolerance touch trim trimming verge way ways wide berth wide margin