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.

And technically, the Supreme Court might decide only whether she can remain in office while her legal challenge plays out.

From The Wall Street Journal

This means they can resist several antibiotics or nearly all available treatment options, making infections much more challenging to manage.

From Science Daily

Some strains of E. faecalis no longer respond to several commonly used antibiotics, making infections increasingly challenging to control.

From Science Daily

"This study addresses one of the biggest challenges in making these lifesaving treatments accessible to more people, showing for the first time a reliable and scalable way to grow multiple immune cell types."

From Science Daily

But referring to Sunday's alleged abductions Kaduna's police commissioner challenged "anyone to list the names of the kidnapped victims and other particulars".

From BBC