Use stoa in a sentence. pl. stoâ²ae or stoâ²as. a portico, as in ancient Greece, having a wall on one side and pillars on the other. Origin of stoa.
Definition of classify for English Language Learners. : 1  to arrange (people or things) into groups based on ways that they are alike. : 2  to consider (someone or something) as belonging to a particular group.
Taxonomy -- from Greek taxis, meaning arrangement or division, and nomos, meaning law -- is the science of classification according to a predetermined system, with the resulting catalog used to provide a conceptual framework for discussion, analysis or information retrieval.