1. A stake sharpened or pointed, especially one used in fortification and encampments, to mark bounds and angles; or one used for tethering horses.
2. A pointed pale, used in marking fences.
3. [Probably so called from the picketing of the horses.
A detached body of troops serving to guard an army from surprise, and to oppose reconnoitering parties of the enemy; called also outlying picket.
4. By extension, men appointed by a trades union, or other labour organization, to intercept outsiders, and prevent them from working for employers with whom the organization is at variance.
5. A military punishment, formerly resorted to, in which the offender was forced to stand with one foot on a pointed stake.
6. A game at cards. See Piquet. Inlying picket A position held and guarded by small bodies of men placed at intervals. A rope to which horses are secured when groomed. Picketpin, an iron pin for picketing horses.
Origin: F. Piquet, properly dim. Of pique spear, pike. See Pike, and cf. Piquet.