cutline noun5 •A caption under a photograph, or more narrowly just the explanatory text block under a photograph, excluding the title. •A linear cleared area through undeveloped land.If you stop and get out, you will see a cutline for line-of-sight surveying. •In production, a hypothetical line that separates items that will be executed and publicized, versus items that will be cut. •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. •A line on the front wall, above which the ball must hit for a serve formscutlines