What does "active vocabulary" mean?

The collection of words and phrases that someone commonly uses in speech and writing.

What is a synonym for "active vocabulary"?

Common synonyms include: vocabulary knowledge.

noun

noun ·Rare ·Advanced level

Noun

1
The collection of words and phrases that someone commonly uses in speech and writing. countable, uncountable
"Joan's active vocabulary consists of over ten thousand words."

"Joan's active vocabulary consists of over ten thousand words."