Words similar to challenge

Example sentences for: challenge

How can you use “challenge” in a sentence? Here are some example sentences to help you improve your vocabulary:

The 1990 Senior Challenge is about to begin.
An article predicts that the "kretek," an Indonesian clove cigarette that controls 90 percent of that country's market, may challenge American tobacco's worldwide dominance.
It is noteworthy that among the genes analyzed that were not found to be significantly regulated when tested in multiple monkeys 4 h after antigen challenge, there were two genes from cluster E: for fibronectin and calcitonin gene-related peptide receptor-1 (CGRP-R1).
The time interval between challenges is also an essential parameter in the design of repeated low-dose challenge experiments.
"That," it said, "is America's challenge."