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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

What used to be a cay is now a spit of sand encircled by a coral reef.

From Washington Post • Apr. 15, 2022

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

There seemed to be no hope of ever leaving the cay, yet I knew I could not always live this way.

From "The Cay" by Theodore Taylor