smokescreen

About 0.13 uses per million words.

Meaning

1. noun Smoke used as a disguise, mask or cover, as of troops in battle.
2. noun Anything used metaphorically to conceal or distract.

   All that talk is just a smokescreen to disguise the fact that he has nothing to say.

Similar words

cover smoke cloak coverage diversion diversionary guise cover-up distraction pretext

Often followed by

of for to behind that and which in or