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gird

verb.  1) fasten something tightly with a belt or a band  2) get ready for a dangerous situation

"Mrs. Clinton is preparing to spend far more in New York than she originally budgeted. Her campaign is girding for a fight and knows it needs to spend money to win."

"Both sides are girding for a protracted court fight, one that could make it to the Supreme Court."

"Kim Moo-sung, a leader of South Korea’s ruling party, called this week for the government to gird itself for a currency clash."