KEY: Embargo.
SYN: Restraint, detention, prohibition, stoppage.
ANT: Permit, permission, discharge, liberation, dismissal, conge.
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KEY: Embark.
SYN: Launch, euler, start.
ANT: Arrive, anchor, land.
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KEY: Embarrass.
SYN: Entangle, misconcert, trouble, perplex, contuse, hamper, clog, distress, puzzle, encumber.