Englishfor English speakers
outer
Adjective
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An outer thing is on the outside or toward the outside.
The outer layer of the coat is water proof, the inner layer keeps you warm.
shell
Noun
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A hard object that can be found on beaches.
I have a collection of colorful shells at home which I have collected when I visit the beach.
shell
Verb
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An act of bombing.
The shelling of the South Korean island is a major event that happened in 2010.