KILOBYTE Meaning of KILOBYTE in English kil ‧ o ‧ byte /ˈkɪləbaɪt/ BrE AmE noun [countable] ( written abbreviation K or KB )a unit for measuring computer information, equal to 1,024 ↑ byte s Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012