Oxford Dictionary English write-in noun noun BrE BrE//ˈraɪt ɪn// ; NAmE NAmE//ˈraɪt ɪn// (US English) Add to my wordlistjump to other resultsa vote for somebody who is not an official candidate in an election, in which you write their name on your ballot paperSee write-in in the Oxford Advanced American DictionaryCheck pronunciation: write-in oxfordlearnersdictionaries.com