The sum of the distance of all the lengths of the sides of an object.
The outer limits of an area. See synonyms at circumference.
An instrument for determining the extent and shape of the field of vision.
The length of such a boundary.
A fortified strip or boundary usually protecting a military position.
A concise summary.
The final result, or outcome of something.
A positive aspect or consequence, often either unexpected or in contrast to other negative aspects.