IPA: /kəˈpɪəsnəs/
KK: /kəˈpɪəsnəs/
The condition of having a large amount or quantity of something.
The copiousness of the notes made studying for the exam much easier.
Copiousness is formed from "copious" (from Latin "copia", meaning abundance or plenty) and the suffix "-ness" (meaning the state or quality of). The word refers to the state of being abundant or plentiful.
Think of 'copia' meaning abundance to remember that 'copiousness' refers to a state of having a lot of something.