No such film as Carry On Cleopatra. It was called Carry On Cleo. Also, word can't be a synonym of itself - cruising isn't a synonym of cruising.

Grid poster here. Sorry folks, I also thought the film was Carry on Cleo but then thought I saw a reference to Carry on Cleopatra thus thought I could use it as a red herring. I have asked for the grid to be removed.

Synonyms was the answer but I was just trying to expand/clarify it. At least my links worked; which was the thing I struggled with at first.