- to associate socially or romantically with people considered inappropriate company, often due to a difference in status, as between managers and subordinates, or professors and students: Doctors fraternizing with interns is nothing new, but hospital management is considering stricter policies to discourage it.
- to associate cordially or intimately with the people of a conquered country, enemy troops, etc., especially in violation of orders or rules: Of the charges these officers are facing, the most serious is fraternizing with the enemy.
- to associate in a fraternal or friendly way.
- to bring into fraternal association or sympathy.
- to associate on friendly terms
