seaside /ˌsiːˈsaɪd/adjective 1adverb 1noun 1forms 1 adjective1 •At or related to a seaside.We stayed in a seaside hotel and ate fresh seafood every night, all week long. adverb1 •At the seaside.We dined seaside and watched the gulls' antics. noun1 •(UK) The area by and around the sea; including the beach, promenade or cliffs.This summer, I'm going to the seaside at Weymouth. I'm very excited about it! formsseasides
