Tokenization Tokenization is the process of segmenting a string of characters into words. Word tokenization in NLP is the process of breaking down a text into individual words, called tokens Tokenization is the process of dividing a text into smaller units (tokens) Specifically, word tokenization involves splitting the text into individual words. Example In the sentence "This is an example.", word tokenization would result in the tokens: "This", "is", "an", "example", and ".“ Purpose Tokenization helps computers understand and process human language by breaking down text into manageable units. Depending on the application in hand, you might have to perform sentence segmentation as well.