Definition of shark

• v. t. & i. - Any one of numerous species of elasmobranch fishes of the order Plagiostomi, found in all seas.
• v. t. & i. - A rapacious, artful person; a sharper.
• v. t. & i. - Trickery; fraud; petty rapine; as, to live upon the shark.
• v. t. - To pick or gather indiscriminately or covertly.
• v. i. - To play the petty thief; to practice fraud or trickery; to swindle.
• v. i. - To live by shifts and stratagems.