kitchen
the room where you cook /ˈkɪtʃ.ɪn/
bedroom
the room where you sleep /ˈbed.ruːm/
bathroom
the room with a bath or shower /ˈbɑːθ.ruːm/
garden
an area of land next to a house /ˈɡɑː.dən/
Examples
"I am cooking in the kitchen."
"My bedroom is upstairs."
"The bathroom is clean."
"We play in the garden."