The line or frontier area separating political or geographical regions.

The outer edge of something.

A decorative strip around the edge of something.

A strip of ground in which ornamental plants are grown.

(Britain, uncountable) border morris or border dancing; a vigorous style of traditional English dance originating from villages along the border between England and Wales, performed by a team of dancers usually with their faces disguised with black makeup.

(computing) A string that is both a prefix and a suffix of another particular string.

(transitive) To put a border on something.

(transitive) To form a border around; to bound.

(transitive) To lie on, or adjacent to, a border of.

(intransitive) To touch at a border (with on, upon, or with).

(intransitive) To approach; to come near to; to verge (with on or upon).