bn:00017557n
Noun Concept
EN
challenge
EN
A demanding or stimulating situation WordNet 3.0
Definitions
Examples
Relations
Sources
EN
A demanding or stimulating situation WordNet 3.0 & Open English WordNet
EN
They reacted irrationally to the challenge of Russian power WordNet 3.0 & Open English WordNet
WordNet 3.0 & Open English WordNet