I keep checking, but nobody seems to know anything except these sort of vague rumors.

But one knew of such things only through vague rumours.

I've heard vague rumor about one, but I don't know where it is.

The problem was to sift vague rumor from straight fact.

"I remember hearing vague rumors of it last summer, but I didn't pay much attention."

Of all these, however, I had heard nothing but the vaguest rumor.

Make it no more than another vague rumor, like the supposed aliens in Hangar 18.

I believe it, for over the years there have been vague rumors.

But my agents hear nothing except these vague rumors.

Thus far, we've only heard some vague rumors on both sides of the market, nothing more.