bn:00063699n
Noun Concept
EN
poser  stumper  toughie  sticker
EN
A particularly difficult or baffling question or problem WordNet 3.0
Definitions
Examples
Relations
Sources
EN
A particularly difficult or baffling question or problem WordNet 3.0 & Open English WordNet
A particularly difficult question or puzzle. Wiktionary (translation)
Something that is tough, or difficult. Wiktionary
EN
His question is a toughie. I might have to do some more research. Wiktionary
IS A
DERIVATION
WordNet 3.0 & Open English WordNet
Wiktionary