What are entities?

Entities are like keywords that are used to extract values from voice input. As seen in the previous section, Creating your first intent, the intent used the Dialogflow system entities @sys.ordinal and @sys.geo-county to extract the values 1 and USA from the voice input. The entities also help to create templatized questions so that you do not have to enter multiple variations of questions that result in the same answer. Similarly, Dialogflow's natural language processing engine uses entities to train data to become smarter at matching voice input to intents.