Answer: coastline

AnswerCrossword Clue
COASTLINEIt's shaped by current events
COASTLINEIt's often irregular
COASTLINEShore
COASTLINESeaboard
COASTLINEGeographical feature.
COASTLINEPlace to patrol
COASTLINESeashore boundary
coastlinea line that forms the boundary between the land and the ocean or a lake
coastlinethe line or boundary of a coast