Among my various areas of expertise is a certain knowledge of architecture.

Of the origin of this strange court we have no certain knowledge.

Fourthly, Of the three real Existences of which we have certain knowledge.

She could attempt it with sure foot, capable hand, and certain knowledge.

He was possessed of certain knowledge relating to Sir Frederick Harden's affairs.

However, Father did seem to have special powers, certain knowledge, almost psychic abilities.

He's been at it for well over a century, to my certain knowledge.

To my certain knowledge she's driven three men into the bin.

But she had gained certain knowledge in the playing of her little part.

To my certain knowledge he has made three in the last two years.

Exact and certain knowledge however about Celsus Origen did not possess.

Now we have no certain knowledge yet of the facts which he quotes.

She knew with the certain knowledge of intuition that he studied her continually.

But he had no certain knowledge that the figures were correct.

So far, we had no certain knowledge of the meaning of these smokes.

She had certain knowledge of her own that-urgedthe course she has taken.