picket

Picket is a term with several related meanings across different domains, including fencing, military or guard duties, and labor or protest activities. In general, it refers to a stake, post, or small group used to observe, deter, or mark an area.

In fencing and construction, a picket is a stake or post driven into the ground to form part of a barrier. Pickets are typically evenly spaced and may be pointed or shaped to support panels or fencing materials. A picket fence uses these posts, or pales, to create a defined boundary while allowing visibility and airflow.

In a military or security context, a picket is a small guard post or detached contingent positioned to provide early warning of an approaching enemy or to protect a route or perimeter. The verb form “to be on picket” or “to picket” describes the act of posting such sentries or patrolling a line of advance.

In labor relations, picketing refers to the activity of protesters who stand outside a workplace or public venue, often carrying signs, to express support for a labor action or to discourage others from entering. Picket lines aim to raise awareness, apply pressure, or protect picketers, and laws governing peaceful picketing vary by jurisdiction. Picketing is typically peaceful and nonviolent, with restrictions that may address crowd size, access to the workplace, and safety considerations.

The term originated from the practice of placing small posts or guards around a position, evolving to describe both physical barriers and organized protest lines. Across uses, pickets serve to mark boundaries, provide warning, or convey a message to onlookers and participants.