Learn how to pronounce bastion with Imago Spectrum. Suggestions, Comments, Mistakes? Please leave feedback below. The following questions are answered in this video... What is bastion? How does bastion look? How to say bastion in English? What does bastion represent? What is the defintion of bastion? Imago Spectrum allows you to easily memorize common English words and phrases by joining visual and auditory learning environments into a short video. Focus on the images and repeat bastion several times for best retention results. In this video we are speaking the word, bastion. Do take note of how bastion is spelled. The definition of bastion is listed below the word in the video. Bastion: A projecting part of a fortification. Have fun studying. Remember to take breaks. Current Word ID: 16114