Hyponym is a term that refers to a word whose meaning is included in another word's meaning. Essentially, it refers to a word that is a subtype or subordinate category of another word. There are several alternative words that can be used to describe hyponyms, including subordinate terms, subset words, and subordinates. Some other terms that could also be used include dependent terms, inclusives, and superset words. All of these words essentially describe the same concept, which is that of a word that is a subset or subordinate category of another word. These alternative terms are useful for those who want to vary their language and keep their writing fresh.