- 1沿海地區（美式新聞常說 eastern seaboard，指東岸那一帶）
The seaboard is the part of a country that lies along the sea — a long stretch of land near the coast, not just one beach or one town. News and books, especially about the United States, say the eastern seaboard for the states that face the Atlantic. It sounds a little old or formal. In everyday talk many people just say the coast. Though actually it is about a region of a country, not the wet sand under your feet, and not the town street with ice-cream shops (that is closer to ).
組成較早寫成 sea-bord。也許接續中古英語 see bord（舷窗蓋、朝海的那一側），意思後來變成「靠海的陸地」。相當於 sea + board。這裡的 board 是「邊、側」，不是寫字的木板。
同家族的字
- overboard同一個較舊的 board：船的舷側、邊緣
- onboard同一個 board：在船上那一側
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
seaboardnoun
- 1
The area bordering the sea; a coastline; a sealine.
- While De Anza was exploring the Bay of San Francisco, seeking a site for the presidio, the American colonists on the eastern seaboard, three thousand miles away, were celebrating the signing of the Declaration of Independence.
- Recently the Great Northern Railway, U,S.A., which has a considerable mileage of line bordering the Pacific seaboard, has put in service mobile equipment for applying anti-corrosion treatment to rails.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。