The term 'round house' can refer to four different structures: a BAR (3 letters), a TAVERN (6 letters), an igloo (5 letters), or a FORT (4 letters). A BAR is an establishment that serves alcoholic beverages, typically in a public setting. A TAVERN is a similar establishment, but it is usually more of a restaurant than a BAR. An igloo is a type of shelter made from blocks of snow, traditionally used by the Inuit people of the Arctic region. Lastly, a FORT is a defensive structure, usually made of stone or brick, designed to protect a settlement from attack.