IPA: //ˈsiːkoʊst//
KK: /ˈsiːkoʊst/
The area of land that is next to the sea, including the shore and any nearby land.
We spent our vacation walking along the seacoast and enjoying the ocean views.
Seacoast → It is formed from "sea" (from Old English "sǣ", meaning large body of saltwater) and "coast" (from Old French "coste", meaning the land next to the sea). The word "seacoast" refers to the land that borders a large body of saltwater.
Think of a large body of saltwater ('sea') next to the land ('coast') — that's what a seacoast is.