active vocabulary

noun

1. the total number of words a person uses in his own speech and writing Compare passive vocabulary

Example Sentences

“These new words have been added to the dictionary because they have established themselves in the English language, and are part of the current, active vocabulary of America,” Brewster said.

From Los Angeles Times

All these have made or are making their way into the American active vocabulary as straightforward, uninflected phrases.

From Slate

At the end of the first year a college student ought to have mastered the elements of grammar and possess good pronunciation and an active vocabulary of about six hundred or eight hundred words.

From Project Gutenberg