challenge
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The decision does not go as far as the bill Newsom vetoed but does extend more latitude to poor convicts to avoid or challenge fees and fines imposed by the court.
From Los Angeles Times
Taiwan's presidential office has criticised the drills, calling them a challenge to international norms.
From BBC
In everyday life, many of us rarely challenge that system, spending long periods in heated or air-conditioned spaces.
From BBC
But analysts point to shifts elsewhere as evidence that democracy on the continent is being challenged.
From BBC
Despite this milestone, developing safer, non-toxic catalysts that can achieve similar performance at lower temperatures has remained an unresolved challenge.
From Science Daily
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.