Oxford Dictionary English Morse code nounnoun BrE BrE//ˌmɔːs ˈkəʊd// ; NAmE NAmE//ˌmɔːrs ˈkoʊd// [uncountable] Add to my wordlistjump to other resultsa system for sending messages, using combinations of long and short sounds or flashes of light to represent letters of the alphabet and numbersSee Morse code in the Oxford Advanced American DictionaryCheck pronunciation: Morse code oxfordlearnersdictionaries.com