General:
* A single distinct meaningful element of speech or writing, used with others (or sometimes alone) to form a sentence and communicate thought. This is the most common definition, encompassing spoken and written words.
* A unit of language that carries meaning. This definition emphasizes the meaning-carrying aspect of words.
More specific:
* A spoken or written sound or sequence of sounds that expresses a particular idea or concept. This definition focuses on the phonetic aspect of words.
* A promise or statement of intention. For example, "He gave his word to help."
* A message or communication. For example, "They sent word that they would be late."
In the context of language:
* A basic unit of meaning in a language. This definition highlights the role of words in forming larger structures like sentences and paragraphs.
* A representation of an object, action, or concept. This definition underscores the symbolic nature of words.
Ultimately, the best definition of "word" depends on the specific context in which you encounter it.