[noun] [C] - the empty shell of a small sea creature, often one found lying on the beachMy children love collecting seashells.'She sells seashells on the seashore and the shells that she sells are seashells I'm sure' is a humorous saying which is difficult to pronounce.
SEASHELL
Meaning of SEASHELL in English
Cambridge English vocab. Кембриджский английский словарь. 2012