| Term | Definition |
| clause | a word group that contains a verb and its subject (independent clause) and can be used as a sentence or a part of a sentence (dependent or subordinate clause.) |
| independent clause | expresses a complete thought and can stand by itself as a complete sentence. |
| subordinate/dependent clause | does not express a complete thought and cannot stand by itself as a complete sentence. |
| adjective clause | a dependent clause that modifies a noun or pronoun |
| adverb clause | a dependent clause that modifies a verb, adjective, or adverb. |
| noun clause | a dependent clause used as a noun |
| subordinating conjuntion | although, as, as if, as long as, as soon as, as though, because, before, how, if, in order that, since, so that, than, though, unless, until, when, whenever, where, wherever, whether, while |
| relative pronouns | That, which, who, whom, whose |