intr.v. frat·er·nized, frat·er·niz·ing, frat·er·niz·es
1. To associate with others in a friendly and informal way.
2. To associate on friendly terms with an enemy or opposing group, often in violation of discipline or orders.
3. To associate on friendly terms with one's superiors or subordinates, often in violation of policy.
[French fraterniser, from Medieval Latin frāternizāre, from Latin frāternus, fraternal; see FRATERNAL.]
frat′er·ni·zation (-nĭ-zāshən) n.
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