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noun

seashell

SEE-shehl
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Seashell (noun) means the hard outer shell of a sea creature such as a clam, snail, or mussel, especially one found washed up on a beach. Example: “The children spent the afternoon collecting seashells along the shore.”

noun
1
The hard outer shell of a sea creature such as a clam, snail, or mussel, especially one found washed up on a beach.
"The children spent the afternoon collecting seashells along the shore."
"She strung the tiny seashells into a bracelet."

How to use seashell

Learner’s notes

In plain EnglishA shell from a sea creature, usually one picked up on the beach.

Common pairings
collect seashells a seashell necklace
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Word forms

Plural
seashells
Third person singular
seashells
Past tense
seashelled
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Fill the gap

Can you complete this real example?

The children spent the afternoon collecting _____ along the shore.

Etymology

Simply "sea" plus "shell" — the shell part traces back through Old English scell to a very old root meaning "to split" or "peel," since shells split away from the creature inside.

Origin: Old English

Frequently asked questions

What does “seashell” mean?
The word “seashell” means the hard outer shell of a sea creature such as a clam, snail, or mussel, especially one found washed up on a beach. In plain terms, a shell from a sea creature, usually one picked up on the beach.
How do you pronounce “seashell”?
“Seashell” is pronounced SEE-shehl (/ˈsiˌʃɛl/ in IPA).
How do you use “seashell” in a sentence?
Here is “seashell” used in a sentence: “The children spent the afternoon collecting seashells along the shore.”
What part of speech is “seashell”?
“Seashell” is a noun.
Where does the word “seashell” come from?
The word “seashell” comes from Old English. Simply "sea" plus "shell" — the shell part traces back through Old English scell to a very old root meaning "to split" or "peel," since shells split away from the creature inside.