IPA: /ˈsɔːltpæn/
KK: /sɔltpæn/
A flat area of land where salt is produced by evaporating seawater or saltwater from lakes.
The workers gathered the salt from the saltpan after the water had evaporated.
Saltpan → It is formed from "salt" (from Old English *sealt*, meaning a mineral substance used for seasoning and preserving food) and "pan" (from Old English *panna*, meaning a shallow container). A saltpan is a shallow container used for evaporating seawater to obtain salt.
Think of a shallow container ('pan') used to collect and evaporate seawater to produce 'salt' — that's what a saltpan is.