Char-a-bancs is a traditional type of open-air passenger vehicle that was popular in the early 1900s. Nowadays, the word is seldom used, and people might have difficulty understanding what it means. Therefore, it's useful to know some alternative words that refer to the same type of transport. Some synonymous terms for char-a-bancs include "double-decker bus," "tour bus," "sightseeing bus," "open-top bus," and "touring coach." These words are widely understood and commonly used to describe vehicles that take passengers on tours or provide transportation for large groups of people. By using these synonyms, you can avoid confusion and make your communication more effective.