cutline
noun
Definitions
In production, a hypothetical line that separates items that will be executed and publicized, versus items that will be cut.
A caption under a photograph, or more narrowly just the explanatory text block under a photograph, excluding the title.
In software testing, a hypothetical line that separates tests that will be performed from tests that may not be performed due to lack of time.
(travel) A linear cleared area through undeveloped land.
Example: If you stop and get out, you will see a cutline for line-of-sight surveying.