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.
: the act of indicating or identifying. 2. : appointment to or selection for an office, post, or service. 3. : a distinguishing name, sign, or title. 4. : the relation between a sign and the thing signified. See designation defined for English-language learners.