Main Entry: bound·ary

Pronunciation: \ˈbau̇n-d(ə-)rē\

Function: noun

Inflected Form(s): plural bound·aries

Etymology: ²bound + ¹-ary

Date: 1598

: something that indicates or fixes a limit or extent

— bound·ary·less \-ləs\ adjective

— bound·ary·less·ness noun