IPA: /ˈspɑːrkliər/
KK: /ˈspɑrkliər/
More shiny or bright than something else.
The new dress is sparklier than the old one.
Sparklier → It is formed from "spark" (from Old English *spearca*, meaning a small particle of fire or light) and "-lier" (a comparative suffix indicating more). The word "sparklier" means having more spark or brightness than something else.
Think of a 'spark' as a small light or fire, and remember that 'sparklier' means having more of that brightness.