(n): a guard who keeps watch
(n): a detachment of troops guarding an army from surprise attack
(n): a small unit of troops of special composition
(n): a protester posted by a labor organization outside a place of work
(n): someone who participates in a public display of group feeling
(n): a vehicle performing sentinel duty
(n): vehicle used by the armed forces
(n): a wooden strip forming part of a fence
(n): thin piece of wood or metal
(n): 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 stake
(n): the deliberate, systematic, or wanton infliction of physical or mental suffering by one or more persons in an attempt to force another person to yield information or to make a confession or for any other reason
(v): serve as pickets or post pickets
(v): march in protest; take part in a demonstration
(v): fasten with a picket
(v): cause to be firmly attached