The word Seashel is misspelled against Seashell, a noun meaning "The shell of any marine mollusk."
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Seashell has double 'll' in the end mispronounced as 'l'
Remember double 'LL' appears in the end of this word which should not be misspelled with single 'L'
Wrong Spelling:  seashe-l 
Correct Spelling:  seashe-ll 
Explore spell check of Seashell to spell without errors.