KILOWATT Meaning of KILOWATT in English kil ‧ o ‧ watt /ˈkɪləwɒt $ -wɑːt/ BrE AmE noun [countable] ( written abbreviation kW )a unit for measuring electrical power, equal to 1,000 ↑ watt s Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012