IPA: /ˈoʊ.pjə.lən.si/
KK: /ˈɑːp.jə.lən.si/
A state of great wealth or luxury, often characterized by lavishness and abundance.
The opulency of the palace was evident in its gold decorations and grand furnishings.
Opulency is derived from 'opulent' (from Latin 'opulentus', meaning wealthy or rich) and the suffix '-cy' (meaning the state or condition of). The word 'opulency' refers to the state of being wealthy or rich.
Think of 'opulent' which means rich or wealthy, and remember that 'opulency' describes the state of being rich.