What is another word for by-way?
Pronunciation: [ba͡ɪwˈe͡ɪ] (IPA) 
By-way is a term that refers to a less-traveled or secondary route. Other synonyms for by-way include side road, backroad, backstreet, alley, pathway, and bridle path. These terms are often used to describe roads or trails that are less prominent, less used, or less maintained than main roads or highways. Additionally, some synonyms for by-way have a specific purpose, such as a bridle path for horseback riding or a pathway for walking. Regardless of the specific term used, all synonyms for by-way share the idea of a less-traveled route that diverges from the main path.
