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Exploit
Def: make full use of and derive benefit from (a resource)
Set: 500 companies sprang up to exploit this new technology. -
chagrin
def: distress or embarrassment at having failed or been humiliated
Set: Much to his chagrin wasn't invited. -
obscure
def: not discovered or known about; uncertain
set: His origins and parentage are obscure. -
interlocutor
def: a person who takes part in a dialogue or conversation
set: Who knows if my interlocutor spoke for the government. -
incontrovertible
def: not able to be denied or disputed
set: This is incontrovertible proof of their acts.