Synonym of FRATERNISE

Answer: Option A

Associate : connect (someone or something) with something else in one's mind.
Organise : arrange systematically; order.
Expel : officially make (someone) leave a school or other organization.
Cheat : act dishonestly or unfairly in order to gain an advantage.
Fraternise : associate or form a friendship with someone, especially when one is not supposed to.

Synonym of Fraternise is Associate