(fiction) In speculative erotica, a scar or mark on a person's body signifying their permanent bond to another, typically the result of a bite.

(zoology, rare) A lasting mark or wound sustained during copulation in certain species.

seascapes and the like

An artist who produces marine art.

(slang) Marijuana; cannabis.

(finance) The informal over-the-counter financial market by which contracts for future delivery are entered into.

plural of marine toilet

A toilet located on a boat, ship, or other watercraft.

(economics) A competitive market is one, in which no single firm can influence the price of a good/services due to the competitive nature of other firms in the market.

Alternative form of leave one's mark