What does it indicate if two regions are "conterminous"?

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Study for the SAT Vocabulary 2025 Test. Master vocabulary with flashcards and questions, each with detailed explanations. Get ready for your exam!

The term "conterminous" specifically refers to two regions that share a common boundary or border each other. This is particularly applicable in geographical contexts, where it describes areas that are adjacent or that occupy contiguous spaces without any separation. This connection implies that the regions are directly next to one another, making choice A the most accurate.

In contrast, the other choices do not capture the meaning of "conterminous": one option suggests distance between the regions, another implies a lack of relation, and the last speaks to a merging that goes beyond simply bordering. Understanding "conterminous" in terms of shared boundaries clarifies its usage in geographical discussions.