What is another word for houyhnhnm?
Pronunciation: [hˈa͡ʊɪhnhnəm] (IPA) 
The word "houyhnhnm" is a made-up term coined by the famous author Jonathan Swift in his novel "Gulliver's Travels". It refers to a race of intelligent and rational horses that live in the land of Houyhnhnmland. There are no common synonyms for this unique word since it only exists within the context of Swift's novel. However, one could use phrases and descriptors such as "wise equine beings" or "intelligent horse society" to convey a similar meaning. The word "centaur", which refers to a mythical creature that is part human and part horse, could be considered a loose synonym for houyhnhnm.
