sandcastle

[ sand-kas-uh l, -kah-suh l ]
/ ˈsændˌkæs əl, -ˌkɑ səl /

noun

a small castlelike structure made of wet sand, as by children at a beach.
a plan or idea with little substance.

Origin of sandcastle

First recorded in 1850–55; sand + castle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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