The term 'LONG SENTENCE' can be broken down into two crossword solutions: LIFE (4 letters) and RUNON (5 letters). A long sentence is a sentence that is longer than average, usually containing many clauses and phrases. It is often used to emphasize a point or to create a dramatic effect. A run-on sentence is a type of long sentence that does not contain any punctuation or pauses, making it difficult to read and understand.