picket
noun
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a form of military punishment used by the British in the late 17th century in which a soldier was forced to stand on one foot on a pointed stakepiquet
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a wooden strip forming part of a fencepale
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a vehicle performing sentinel duty
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a detachment of troops guarding an army from surprise attack
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a person employed to keep watch for some anticipated eventwatchlookoutspotterlookout mansentinelsentryscout
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a protester posted by a labor organization outside a place of work
verb
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fasten with a picket“picket the goat”
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serve as pickets or post pickets“picket a business to protest the layoffs”