Conjunction {Ans: A word used to join other words, phrases, clauses, and independent clauses.}Essential {Ans: A word, phrase, or clause that is vital to the meaning of the sentence.}Compound sentence {Ans: A sentence consisting of two or more independent clauses.}Parenthetical Expression {Ans: An interrupting group of words that does not change or contribute to the meaning of a sentence. The words may appear at the beginning, middle, or end of the sentence and are usually nonessential.}Capital letter {Ans: Uppercase letter, also called "cap."}Noun {Ans: The name of a person, place, or thing.}Acronym {Ans: A word formed from the initial letters of other words.}Proper noun {Ans: The name of a specific person, place, or thing.}Dependent clause {Ans: A group of words that contains a subject and a verb and that depends on some other word or words in the sentence for completeness of meaning.}Eponym {Ans: An adjective derived from a proper noun.}Small letter {Ans: Lowercase letter, noncapital letter.}Adverb {Ans: A word that qualifies, intensifies, or modifies a verb, an adjective, or another adverb, explaining when, where, or how and often ending in "-ly."}Introductory phase {Ans: A group of