What is another word for main line?
Pronunciation: [mˈe͡ɪn lˈa͡ɪn] (IPA) 
The phrase "main line" often refers to a primary route or pathway. However, there are several synonyms that can be used to express this idea. For instance, we might refer to the "main artery," "major thoroughfare," or "primary pipeline" within a particular system or location. Alternatively, we could use words like "central," "core," or "primary" to describe the most important or essential aspect of something. Using synonyms can add depth and variety to our language, helping us to communicate more effectively and express ourselves more eloquently. Whether we're writing a research paper or having a casual conversation, it's always useful to have a variety of words and phrases at our disposal to convey our meaning with clarity and precision.
