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.
n. 1  A number of people or things having in common traits or characteristics that distinguish them as a group or class. 2  The general character or structure held in common by a number of people or things considered as a group or class. 3  A person or thing having the features of a group or class.