Meaning

noun a clear or unobstructed space or expanse of land or water

noun where the air is unconfined

noun a tournament in which both professionals and amateurs may play

originAdjective from Middle English open, from Old English open (“open”), from Proto-West Germanic *opan, from Proto-Germanic *upanaz (“open”), from Proto-Indo-European *upo (“up from under, over”). Cognates * Scots apen (“open”) * Saterland Frisian eepen (“open”) * West Frisian iepen (“open”) * Cimbrian offe (“open”) * Dutch open (“open”) * German offen (“open”) * Vilamovian ufa, uffa (“open”) *…

Etymology from Wiktionary, CC BY-SA 3.0