The couple became close collaborators: working together to combine design, illustration, text and theatre.

He was a close collaborator of Vargas since his rise to power in 1930.

Sykes was a close collaborator and friend of the Goons.

Some songs on the album features the voice of female singer Mel, a close collaborator.

Performances as good as they get, by a close collaborator of the composer.

The two men were close collaborators during the Bosnian war.

Although the two never met, Hyde and Bent became close collaborators.

He induced Fielding to enter cabinet, and they became close collaborators.

She remains a close collaborator of the Center and maintains a good relationship with Hoover.