headland

noun
A narrow piece of land that projects from a coastline into the sea. (The Fal estuary is long and wide, and Falmouth grew along its western side in a straggling way, curving round into docks at the southern end where a headland projects to narrow the mouth.)
A strip of land left unplowed at the end of a field. (These represent the headlands separating bundles of strips within the open fields, where animals turned while ploughing.)