Meaning of the word "expand your vocabulary" in English

What does "expand your vocabulary" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

expand your vocabulary

US /ɪkˈspænd jʊər voʊˈkæbjəˌlɛri/
UK /ɪkˈspænd jɔː vəˈkæbjʊləri/

Phrase

to increase the number of words you know and use

Example:
Reading books is a great way to expand your vocabulary.
To improve your writing, you need to actively expand your vocabulary.