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.
Noun. 1. taxonomy-a classification of organisms into groups based on similarities of structure or origin etc. hierarchy-a series of ordered groupings of people or things within a system; put honesty first in her hierarchy of values.