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KEY: Actuate.
SYN: Urge, instigate, stir, induce, influence, incline, dispose, incite, impel, prompt, drive.
ANT: Deter, discourage, retard, inhibit, hinder, prevent, impede, dissuade.
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KEY: Acuity.
SYN: Pointedness, acylation, acumination.
ANT: Bluntness, hebetude, obtuseness.
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KEY: Aculeated.