Natural Language Processing (NLP) is a field of artificial intelligence (AI) and computer science focused on the interaction between humans and computers using natural language. NLP enables computers to understand, interpret, and generate human language, allowing for more natural communication between humans and machines.

NLP involves several tasks, including language translation, sentiment analysis, speech recognition, text classification, and chatbots. Common NLP algorithms and models include tokenization, part-of-speech tagging, named entity recognition (NER), and machine learning models like transformers and recurrent neural networks (RNNs).

Technologies such as Google Translate, Amazon Alexa, Siri, and customer support chatbots heavily rely on NLP for their functionality. Modern NLP advancements, particularly in deep learning, have enabled machines to understand context, nuances, and ambiguities in human language, making human-computer interactions more intuitive.