Grammar class subject is a broad term that encompasses many different aspects of language. The crossword solutions for this term include VERB (4 letters), which is an action word; TENSE (5 letters), which is the form of a verb that indicates when an action took place; SYNTAX (6 letters), which is the structure of a sentence; NOUN (4 letters), which is a person, place, thing, or idea; COMMA (5 letters), which is a punctuation mark used to separate parts of a sentence; and CLAUSE (6 letters), which is a group of words containing a subject and a verb. All of these terms are important components of grammar and are typically taught in a grammar class.