Pronunciation: /pəˈrɪmɪtər/
noun a boundary that surrounds an area or object
A1 The students walked around the perimeter of the school.
A2 The farmer put up a fence around the perimeter of his land.
B1 The security guard patrols the perimeter of the building every hour.
B2 The architect calculated the perimeter of the house to determine how much fencing was needed.
C1 The soldiers set up a perimeter around the camp to protect it from intruders.
C2 The mathematician used advanced formulas to calculate the perimeter of the complex shape.
adjective pertaining to the outer boundary of an area or object
A1 The perimeter fence keeps the animals safe.
A2 The perimeter security cameras are always watching.
B1 The perimeter alarm system was triggered by a break-in.
B2 The perimeter defenses were breached by enemy forces.
C1 The perimeter patrol was increased due to recent security threats.
C2 The perimeter monitoring system detected unauthorized activity.
formal The security guards patrol the perimeter of the building every hour.
informal Let's walk around the perimeter of the park before heading home.
slang We scoped out the perimeter of the party to see if there was a way to sneak in.
figurative She kept her emotions tightly guarded, never letting anyone breach the perimeter of her heart.
perimeters
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perimetering
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