OWL is an acronym for: *
Web Ontology Language, a markup language for publishing and sharing data using
ontologies on the World Wide Web.* Overwhelmingly Large Telescope, a proposed
optical telescope that would use a 100-meter-diameter main reflector.* Object
Windows Library, an object-oriented software framework for creating Microsoft
Windows applications, created by Borland.* Ordinary Wizarding Level, a test of
magical aptitude in the fictional Harry Potter series.