Duchess and Old bag

Duchess noun - The wife of a duke or a woman holding ducal title in her own right.

Old bag and duchess are semantically related. in woman topic. In some cases you can use "Old bag" instead a noun "Duchess".

Old bag noun - An ugly or ill-tempered woman.

Duchess and old bag are semantically related. Sometimes you can use "Duchess" instead a noun phrase "Old bag".