Definition of "Cook" :
noun: someone who cooks food
noun: English navigator who claimed the east coast of Australia for Britain and discovered several Pacific islands (1728-1779)
verb: transform and make suitable for consumption by heating
"These potatoes have to cook for 20 minutes."
verb: transform by heating
"The apothecary cooked the medicinal mixture in a big iron kettle."
verb: prepare for eating by applying heat
"Cook me dinner, please."
verb: prepare a hot meal
"My husband doesn't cook."
verb: tamper, with the purpose of deception
"Cook the books."