The term "section off" typically refers to a process of dividing a space or area into distinct sections or partitions. There are several synonyms that can be used to describe this process, including "partition," "divide," "segment," "separate," and "isolate." Each of these words can be used to describe the process of creating distinct areas in a larger space, whether it's for organizational purposes, privacy, or safety. Other possible synonyms for "section off" might include terms like "constrain," "cordon," or "enclose," which emphasize the process of creating clear boundaries between different areas. Overall, these words can be useful for writers or speakers looking to describe the process of dividing up a larger space.