HOT-WATER BAG as NOUN

1. Meaning
   • a stoppered receptacle (usually made of rubber) that is to be filled with hot water and used for warming a bed or parts of the body
   Synonym(s)
   • hot-water bottle (what does hot-water bottle mean?)
   Hypernyms(s) hot-water bag is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • receptacle (what does receptacle mean?)