// adj. Pertaining to the grammatical properties of individual words, or more particularly to subclasses of words. For example, the classification of nouns into grammatically significant gender classes in certain languages is a lexico-syntactic...

The American middle class is an ambiguously defined social class in the United States.[1][2] While concept remains largely ambiguous in popular opinion and common language use,[3][4] contemporary sociologists have put forth several, more or less...