海岸|かいがんkaigan[0]heiban (flat)

1. nounseashore; coast; seaside; waterfront; beach
   このバスは、海岸かいがんに行いきますか。↗

   Does this bus go to the beach?

• Synonym海辺うみべNeutralThe area around the sea with an everyday, lived-in feel, as in 「海辺の町」; 「海岸」 is more geographic, the strip where land meets the sea.
• Synonym海浜かいひんWrittenWritten word for a sandy seaside, as in 「海浜公園」; mostly in place and facility names.
• SynonymシーサイドCasualColloquial loanword for the seaside, common in hotel and shop names like 「シーサイドホテル」.
• SynonymコーストCasualColloquial loanword for the coast, mostly in place names like 「ゴールドコースト」.
• Related浦うらWrittenWritten word for a small bay or a fishing village on one, as in 「田子の浦」; found in place names and classical poetry.
• Related海沿いうみぞいNeutralLand running along the sea, stressing the line it follows, as in 「海沿いの道」.
• Related沿岸部えんがんぶWrittenWritten word for coastal regions, as in 「沿岸部の被害」; typical of news reports.
• Antonym内陸ないりくNeutralThe opposite of 「海岸」: areas inland, far from the sea.

Default to 「海岸」. Use 「海辺」 for the seaside area in daily life, 「海沿い」 for roads along the coast, 「沿岸部」 in news, 「海浜」 and 「シーサイド」 in facility names, and 「内陸」 for inland.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 海うみと接せっする陸地りくちの部分ぶぶん。