frat·er·nize (also fraternise British English) /ˈfrætənaɪz $ -ər-/ verb [intransitiveI] SOCIALIZEto be friendly with someone, especially if you have been ordered not to be friendly with them 〔尤指违反禁令与某人〕交好,亲善fraternize with The troops were forbidden to fraternize with the enemy. 部队严禁亲敌。
—fraternization /ˌfrætənaɪˈzeɪʃən $ -tərnə-/ noun [uncountableU]