海浜|かいひんkaihin[0]heiban (flat)

1. nounseashore; seaside; beach

• Synonym海岸かいがんNeutralThe most common, general word for land along the sea — rocky shores and sandy beaches alike. 「海浜」 tends to suggest a sandy beach and has a more written flavor.
• Synonym海辺うみべNeutralThe everyday word for the seaside, with a familiar, lived-in feel. 「海浜」 is mostly seen in names such as 「海浜公園」.
• SynonymシーサイドNeutralA loanword for the seaside, common in hotel, place and commercial-facility names. In everyday speech people say 「海辺」.
• SynonymコーストNeutralA loanword for the coast, used mainly in place names and proper names such as 「ゴールドコースト」; rarely stands alone in daily speech.
• Related湾岸わんがんNeutralRefers to the shore of a bay or gulf, often in Tokyo Bay place and road names such as 「湾岸線」; its range is limited to bays.
• Related浦うらWrittenA written word for a bay or inlet, also a fishing village on the shore; often found in place names and carries an old-fashioned elegance.
• Related浦辺うらべWrittenAn archaic, literary word for the seacoast, seen in waka poetry and literature; not used in everyday speech.
• Related海沿いうみぞいNeutralThe land running along the sea, as in 「海沿いの道」; it stresses following the coastline, while 「海浜」 names the seaside area itself.
• Related沿岸部えんがんぶWrittenThe region near the sea, typical of news and administrative writing, as in 「沿岸部の住民」; broader in scope than 「海浜」.

In everyday speech, say 「海辺」 for the seaside and 「海岸」 for the coast in general; 「海浜」 is a written word best known from names like 「海浜公園」. シーサイド and コースト turn up in names, 湾岸 in bay-area names, 浦 and 浦辺 are literary, 海沿い describes land along the sea, and 沿岸部 is for news and official contexts.

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

1. 浜辺はまべ。海辺うみべ。