It told him a definite fact concerning the killer.

Perhaps the grin indicated a definite fact: that Badger was pleased with his own policy in this game.

I asked, much interested in the prospect of at last learning some definite fact in his history.

In the end he got a definite fact.

Harry Vincent was dead - that definite fact swept all other thoughts from mind.

She's more difficult, but there is one definite fact.

Contact means the exchange of specific knowledge, ideas, or at least of findings, definite facts.

How many people could give you one single definite fact about the architectural ornaments of buildings in which they worked?

That seems to be one of the few definite facts they know about him.

It was not a definite fact at all; no more than an assumption.