Definition that contains mountainous
- afghanistan a mountainous landlocked country in central Asia; bordered by Iran to the west and Russia to the north and Pakistan to the east and south
- austria a mountainous republic in central Europe; under the Habsburgs (1278-1918) Austria maintained control of the Holy Roman Empire and was a leader in European politics until the 19th century
- bosnia a mountainous republic of south-central Europe; formerly part of the Ottoman Empire and then a part of Yugoslavia; voted for independence in 1992 but the mostly Serbian army of Yugoslavia refused to accept the vote and began ethnic cleansing in order to rid Bosnia of its Croats and Muslims
- yugoslavia a mountainous republic in southeastern Europe bordering on the Adriatic Sea; formed from two of the six republics that made up Yugoslavia until 1992; Serbia and Montenegro were known as the Federal Republic of Yugoslavia until 2003 when they adopted the name of the Union of Serbia and Montenegro
- burma a mountainous republic in southeastern Asia on the Bay of Bengal
- highland elevated (e.g., mountainous) land
- wyoming a state in the western United States; mountainous in the west and north with the Great Plains in the east
- highlands a mountainous region of northern Scotland famous for its rugged beauty; known for the style of dress (the kilt and tartan) and the clan system (now in disuse)
- slovenia a mountainous republic in central Europe; formerly part of the Habsburg monarchy and Yugoslavia; achieved independence in 1991
- tyrol a picturesque mountainous province of western Austria and northern Italy