straits
noun
a comparatively narrow passageway connecting two large bodies of water —often used in plural but singular in construction
isthmus
a narrow space or passage
noun
a dollar formerly issued by British Malaya and used in much of southern and eastern Asia and the East Indies
geographical name
former country in southeastern Asia on the Strait of Malacca comprising Singapore Island, Penang, and Melaka area 1242 square miles (3229 square kilometers); now divided between the republic of Singapore and the federation of Malaysia