From Longman Dictionary of Contemporary Englishoverwriteo·ver·write /ˌəʊvəˈraɪt $ ˌoʊ-/ verb (past tense overwrote /-ˈrəʊt $ -ˈroʊt/, past participle overwritten /-ˈrɪtn/) [transitive] to replace the information in a computer document with new information from another document Do you want to overwrite the file?