Definition: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Input: Is there a term for a word that means itself? For example the word word means itself and is a word.
Output:
From Wikipedia, emphasis mine: An autological word (also called homological word or autonym) is a word that expresses a property that it also possesses (e.g. the word 'short' is short, 'noun' is a noun, 'English' is English, 'pentasyllabic' has five syllables, 'word' is a word, 'sesquipedalian' is a long word, 'adjectival' is adjectival; see Wiktionary for a partial list).