Used when physical objects prevent passage or access.

Physical Barriers

Often used in the context of protection or to maintain security.

Public Safety

It implies the restriction is not permanent and will be lifted.

Indicates setting time aside intentionally before needing it.

Suggests a period of time with no disturbances is reserved.

Reflects the importance or urgency of the activity in that time.

Refers to an obstruction that causes a mechanism to stop working.

Applied when flow of liquid, gas, or electricity is obstructed.

Use when the action is taken to prevent a specific outcome.