>In US a wardrobe is a collection of clothes

Here too, it has both meanings. I do not have separate cupboards but I do have a winter wardrobe and a summer wardrobe.

Armoire - You can buy armoirs in antique shops and the kind of places which sell smart French Furniture.

Pantry - I used to have a lovely country cottage with a large pantry - very useful too.

Some of the Victorian houses in Edinburgh have a "maid's room", it is a small room towards the back of the house with a separate staircase, next to the kitchen.