$$$$ AMBER ROSE SIGNS A MULTI-MILLION DOLLAR 'SILENCE AGREEMENT' . . . NOT ALLOWED TO DISCUSS HER RELATIONSHIP WITH KANYE

But DON'T EXPECT Amber to go talking about their former realationship.

According to an industry insider, Kanye West is paying Amber MILLIONS OF DOLLARS to keep the details of their relationship a secret.

The insider explained, "It's pretty common to have 'silence' agreements amongst entertainers. I heard that Amber's getting 7 figures to keep her lips closed."

DAYUMMMM . . . We wonder what she could be HIDING