The phrasal verb 'branch off' is predominantly used in informal contexts, although it can occasionally appear in more formal writings when describing natural or organizational structures. It typically refers to the action of something splitting from a main path or part, like a road, stream, or process. In terms of general usage, 'branch off' often describes physical phenomena, such as when a smaller road diverges from a larger one or when a stream separates from a river. Additionally, it can be used metaphorically to refer to ideas or discussions that diverge from the main topic. It is particularly common in both geographic and organizational contexts, often describing how entities or divisions expand beyond a central point. Despite its frequent use in casual conversation, 'branch off' is versatile and can effectively illustrate divergence or expansion in various settings.
B2
UpperIntermediate
1. To divide into one or more subdivisions from a main route or topic.
The highway branches off into two smaller roads after the bridge.
As we continued our discussion, we branched off into related topics.
2. To have a new direction in terms of travel or discussion.
After the main entrance, the trail branches off to the left towards the lake.
The conversation branched off into different areas after the initial question.