Munro-bagging refers to the activity of climbing a mountain in Scotland that is at least 3,000 feet tall, known as a Munro. However, there are several synonyms that can be used to refer to this activity. Some examples include hillwalking, fell running, peak bagging, summiting, and mountaineering. All of these terms refer to the act of climbing a mountain or hill, but each has its own nuances. For instance, hillwalking may refer to a more leisurely walk than mountaineering, while fell running may imply a quicker pace. Nevertheless, all of these terms are interchangeable with Munro-bagging, depending on the context and the specific mountain or hill being climbed.