How big is the averagepersons vocabulary?

The average adult English speaker typically has a vocabulary of around 20,000 to 35,000 Words. However, the active vocabulary—Words they regularly use—tends to be smaller, often ranging from 5,000 to 10,000 Words. Factors such as education, profession, and personal interests can significantly influence vocabulary size. Children and non-native speakers generally have smaller vocabularies, which expand with exposure and practice.