IPA: /ˈoʊ.pjə.ləns/
KK: /ˈɑp.jə.ləns/
A state of having a lot of wealth, luxury, and richness.
The palace was a symbol of opulence, filled with gold and precious jewels.
Opulence is derived from "opulentus" (meaning wealthy or rich) in Latin, which comes from "opus" (meaning work or wealth). The word describes a state of great wealth or luxuriousness.
Think of 'wealth' ('opus') to remember that 'opulence' refers to a state of being very rich or luxurious.