breakpoint

A point in a program at which operation may be interrupted during debugging so that the state of the program at that point can be investigated.

A viewport width at which a web page is programmed to adjust the properties (such as position, size, or visibility) of certain elements within the page.

The point where surface water waves are breaking in, e.g., oceans or lakes.

A location referred to when issuing watches, warnings, or advisories for specific areas.

To flag with a breakpoint.