This article provides an overview of word meaning and its importance in language and communication. It discusses the various types of word meanings, such as denotative, connotative, and figurative meanings. Additionally, it explores the importance of acquiring and representing word meaning and the various techniques used in natural language processing. Furthermore, the article examines the applications of word meaning, such as machine translation, sentiment analysis, and text classification. Lastly, it looks at the challenges and limitations associated with word meaning, such as ambiguity and context dependency.