WordNet is a large lexical database of the English language, created at Princeton University. It groups English words into sets of synonyms called "synsets," which represent distinct concepts. Each synset is linked to other synsets through various semantic relationships, such as antonymy and hyponymy, making it a valuable resource for understanding word meanings and relationships. Developed in the 1980s, WordNet is widely used in natural language processing and computational linguistics. It provides a structured way to analyze language, helping machines understand human language better. Researchers and developers often utilize WordNet for tasks like information retrieval, text analysis, and machine translation.