IPA: /səˈplaɪəns/
KK: /səˈplaɪəns/
The act of providing what is needed or requested; help or support given to fulfill a need.
The charity provided suppliance to those affected by the disaster.
Suppliance is formed from "supplere" (meaning to fill up or supply) and the suffix "-ance" (indicating a state or quality). The word refers to the state or quality of supplying or providing something.
Think of 'supplying' something to remember that 'suppliance' means the act of providing or filling up.