seashell
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.”
How to use seashell
Learner’s notesIn plain EnglishA shell from a sea creature, usually one picked up on the beach.
Word forms
- Plural
- seashells
- Third person singular
- seashells
- Past tense
- seashelled
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.