bisect

To cut or divide into two parts.

To divide an angle, line segment, or other figure into two equal parts.

To perform a binary search on files in source control in order to identify the specific change that introduced a bug etc.

An envelope, card, or fragment thereof showing an affixed cut half of a regular issued stamp, over which one or more postal markings have been applied. Typically used in wartime when normal lower rate stamps may not be available.

A bisector, which divides into two equal parts.