Part-of-speech tagging

Part-of-speech tagging is like putting labels onto words to tell you what type of word it is. For example, if you've ever played a game of Mad Libs, you know that you need certain kinds of words to fill in each space (like a noun, verb, or adjective). Part-of-speech tagging is like doing this automatically with a computer. It looks at each word and decides what type of word it is so that it can understand the sentence better.