(authorship) A sentence at the beginning of a paragraph indicating the general matter to be discussed later in that paragraph.

(law) A decree that someone be put to death as a punishment for a crime; a sentence of execution. / (figuratively) Anything that spells death.

(law) A sentence of imprisonment for the rest of the defendant's life.

(grammar) A group of words that appear to convey only part of a complete thought, lacking some component which is grammatically necessary to complete the thought.

plural of incomplete sentence

An incomplete sentence; a phrase or clause that is punctuated and capitalized as a sentence but does not constitute a complete grammatical sentence. It is usually caused by the failure to include a subject and a verb, or as the result of beginning a sentence with a subordinate conjunction or relative pronoun.

(law) A criminal sentence of a predetermined minimum period of time which a judge is required by statute to impose upon a conviction for a crime.

(grammar) A run-on sentence.

Any very long, often also in other ways badly formed or even chaotic sentence.

(grammar) a sentence that contains an independent clause as well as one or more dependent clauses, such as a relative clause, an adverbial clause, or a noun clause.