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Synonyms

cay

American  
[key, kee] / keɪ, ki /

noun

  1. a small low island; key.


cay British  
/ kiː, keɪ /

noun

  1. Also called: key.  a small low island or bank composed of sand and coral fragments, esp in the Caribbean area

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cay Scientific  
/ kē,kā /
  1. A small, low island composed largely of coral or sand.

  2. Also called key


Etymology

Origin of cay

1700–10; < Spanish cayo; key 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

From the point of view of the Philippines this, and the fact that Pagasa is solid land, not a partially submerged reef or sandy cay, strengthens its legal claims in the area.

From BBC • May 20, 2025

One person from the missing vessel spent 30 hours in the water before also being washed ashore at Bedwell Island, a small sandy cay within the Clarke Reef coral atoll.

From Reuters • Apr. 19, 2023

And rising sea levels and storm surges led to the recent extinction of a rodent species called Bramble Cay melomys, which lived on a remote cay in the northern Great Barrier Reef, the report said.

From Seattle Times • Feb. 28, 2022

Hundreds of people had fled this cay off Great Abaco in the face of Hurricane Dorian.

From Washington Post • Sep. 8, 2019

But we had no aspirin on the cay, of course, and the water was always warm.

From "The Cay" by Theodore Taylor