SYN: Haggle, bargain, higgle, stickle, boggle.
ANT: Close, conclude, agree, negotiate.
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KEY: Chagrin \v.\ [See CHAFE].
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KEY: Challenge \v.\
SYN: Defy, summon, dare, question, investigate, brave, canvass.
ANT: Pass, allow, grant, concede.
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KEY: Champion \n.\