In a building, a room is any space enclosed within a number of walls to which entry is possible only by a door or other dividing structure that connects it either to a passageway, to another room, or to the outdoors, that is large enough for several persons to move about, and whose size, fixtures, furnishings, and sometimes placement within the building support the activity to be conducted in it.
Ang silid ay bahagi ng isang bahay o gusali.