Grammar. a grammatical unit of one or more words that expresses an independent statement, question, request, command, exclamation, etc., and that typically has a subject as well as a predicate, as in John is here. or Is John here? In print or writing, a sentence typically begins with a capital letter and ends with appropriate punctuation; in speech it displays recognizable, communicative intonation patterns and is often marked by preceding and following pauses.
Law. an authoritative decision; a judicial judgment or decree, especially the judicial determination of the punishment to be inflicted on a convicted criminal: Knowledgeable sources say that the judge will announce the sentence early next week. the punishment itself; term: a three-year sentence.
Music. a complete idea, usually consisting of eight to sixteen measures; period (def 18) See also phrase (def 4).
Archaic. a saying, apothegm, or maxim.
Obsolete. an opinion given on a particular question.