Synonyms of isthmus

isthmus

noun

as in island

a narrow geographic area that connects two larger geographic areas across a body of water

the Isthmus of Panama

Related Words

• island
• peninsula
• continent
• land
• mainland
• bridge
• soil
• earth
• zone
• dust
• landmass
• ground
• terra firma
• dirt

Example Sentences

Recent Examples of isthmus

Despite the geopolitical and financial constraints, the sea-level canal studies employed hundreds of researchers who increased knowledge of the isthmus and its human and nonhuman inhabitants. — Christine Keiner, The Conversation, 2 Apr. 2026

In 2003, a momentous discovery on the Ness of Brodgar, a narrow isthmus just north of Stenness, transformed perceptions of prehistoric Orkney. — Alex Ross, New Yorker, 24 Nov. 2025

Mehmet Yaren Bozgun / Anadolu via Getty Images The Mexican government plans to turn the isthmus into a strategic corridor for international trade, with ports and rail lines that can connect the Atlantic and Pacific Oceans. — CBS News, 29 Dec. 2025

But this Central American country – a narrow isthmus stretching for 500 miles between Costa Rica (to the west) and Colombia (to the east) – offers far more to interest the curious traveller, said David Amsden in Condé Nast Traveller. — The Week Uk, TheWeek, 29 Mar. 2026