The quality of being brothers or brotherly; brotherhood. / A group of people associated for a common purpose.

(intransitive) To associate with others in a brotherly or friendly manner. / (intransitive) To associate as friends with an enemy, in violation of duty.

Of or pertaining to a brother or brothers. / Of or pertaining to a fraternity. / Platonic or friendly.

A society formed to provide mutual aid, such as insurance. / A fraternal twin.

The act of fraternizing or uniting as brothers. / Having a friendly relationship with the enemy.

In a fraternal manner.

A person who fraternizes.

plural of fraternizer

plural of fraternity

simple past tense and past participle of fraternize