Final answer:
Sentences that smoothly connect different thoughts are associated with 'transitions,' which are used in writing to indicate relationships between ideas and maintain flow.
Step-by-step explanation:
Sentences that connect different thoughts, points, and details in a way that allows them to flow naturally from one to the next are most closely associated with transitions. Transitions are words or phrases that show the connections or relationships between sentences and paragraphs, helping to maintain a smooth flow in writing. They can be used not only to indicate the passage of time in narratives but also to introduce new characters or ideas, tie ideas together, or make connections to larger themes.
Effective use of transitions is essential in any form of writing. They can be abstract or subtle, assisting in organizing ideas and information throughout a text. In this way, transitions function as cues for the reader, signaling how one idea supports or refutes another, how paragraphs interconnect, and preparing the reader for what is to come.