To invite someone to take part in a competition.
The word "challenge" is correct and usable in written English. It can be used as a noun, verb, or adjective. For example: The executives faced a major challenge when they had to make a difficult decision.
The future of Barack Obama's signature healthcare reforms hangs in the balance after facing a rigorous challenge from conservative justices on the supreme court.
Anderson has said his review considered the safeguards to privacy, issues of transparency and oversight as well as the powers needed to meet the challenge of changing technologies.
"So the real challenge for us as we debate our role in the EU is working out what we should be pushing forward, what we should be leading on within the EU, to make it – and us – a more effective economic and global power".
The legal argument focused on the challenge to core of the legislation – its requirement that almost all Americans buy health insurance.
Take a look at this month's Live Better challenge here.
Carr, who served as NSW premier for 10 years, entered the Senate and became foreign minister at the request of former prime minister Julia Gillard in March 2012, when Kevin Rudd returned to the backbench after losing a leadership challenge.
"It's quite a challenge.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia