He hopes to be challenging for the first team by Christmas.

She was challenging me by her very presence and posture.

The knowledge it produces at any time is tentative and always open to challenge by further evidence.

But there are two conclusions that challenge earlier findings by the agency.

They challenge the basic concept of performance reviews by managers.

In a country where people cannot challenge decisions by their leaders, such public participation is a fairly radical idea.

From a legal point of view there would be good grounds to challenge any action by the Scottish government on its own behalf.

It isn't as if ballet is something you always do well and are never challenged by.

You may challenge use of your trademark by someone else in several ways, depending on the factual situation.

I want this challenged by people in both parties, as the system is totally stacked against a third party ever emerging.