shark
noun
[ ʃɑːk ]
• a long-bodied chiefly marine fish with a cartilaginous skeleton, a prominent dorsal fin, and toothlike scales. Most sharks are predatory, although the largest kinds feed on plankton, and some can grow to a large size.
• a small SE Asian freshwater fish with a tail resembling that of a shark, popular in aquaria.
• a light greyish-brown European moth, the male of which has pale silvery hindwings.
shark
verb
• (typically of a man at a social gathering) be in active pursuit of a sexual partner.
• "as soon as he arrived he was sharking among the women"
Origin:
late Middle English: of unknown origin.
shark
noun
• a person who unscrupulously exploits or swindles others.
• "property sharks want to develop 200 acres around the site"
• an expert in a specified field.
• "a pool shark"
Origin:
late 16th century: perhaps from German Schurke ‘worthless rogue’, influenced by shark1.
