From Longman Dictionary of Contemporary Englishstock optionˈstock ˌoption noun [countable usually plural] American English stock that a company offers to sell to an employee at a price that is lower than the usual price
Examples from the Corpus
stock option• Each company has granted the other a 19 % stock option.• The Black-Scholes model is prized because it measures the fair value of stock option contracts.From Longman Business Dictionarystock optionˈstock ˌoption (also employee stock option)FINANCE an option to buy shares at a particular price, especially an option given to employees to buy shares in the company they work forSYNshare optiona stock option plan for key employees that gives Mr O'Reilly options to buy four million shares of stock → option 