Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hot-water_bag

1 sense of hot-water bag

Sense 1
hot-water bottle, hot-water bag -- (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)
       => receptacle -- (a container that is used to put or keep things in)