chamber [chambers](part of a firearm holding the round before firing) noun [UK: ˈtʃeɪm.bə(r)] [US: ˈtʃeɪm.bər]
room [rooms](division in a building) noun [UK: ruːm] [US: ˈruːm]She showed me her room. = Ella me mostró su recámara.
recámaranoun {m}
bedroom [bedrooms](room in a house where a bed is kept for sleeping) noun [UK: ˈbe.druːm] [US: ˈbe.ˌdruːm]My bedroom is just above. = Mi recámara está justo arriba.