Definition 1 of 2
Use when describing events with many elements, like lights, costumes, or stunts, that impress.
The carnival parade was an extravaganza, filled with colorful floats and performers.
Best fits contexts suggesting celebration, delight, or entertainment rather than serious events.
The school's anniversary ended with an extravaganza that left everyone in high spirits.
Can describe virtual events, too, especially when they are interactive and elaborate online.
The virtual concert was a technological extravaganza, with 3D effects and live interactions.