fraternize

present singular third person fraternizes · participle present fraternizing · participle past fraternized · past fraternized · alternative fraternise

1. intransitiveTo associate with others in a brotherly or friendly manner.
2. intransitiveTo associate as friends with an enemy, in violation of duty.

   1 more example

   Now in this world it is never wise to meddle with such things. It's better to leave them as they are. No one ever had any good come to him from fraternizing with too great familiarity with the unknown; and it's a very good thing that the children from The Other Side are as shy as they are, as Alice found out through Evelyn Dearie.

   1920, Mary Heaton Vorse, Growing Up

3. intransitiveTo socialize in confidentiality.
4. intransitiveTo have an intimate or sexual relationship with a forbidden party.