Seashore, Coast, Seacoast
noun, の adjective
The ocean/sea coast is the seashore. Then again, it could also be the coast as well.
かいがん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
今日は海岸をジョギングしました。
Today, I jogged at the seashore.
海岸からはヨットやサーファーが見えました。
I saw yachts and surfers from the coast.
今週の日曜日は海岸線沿いのお洒落なカフェに行きたいな。
I want to go to a stylish cafe along the coastline this Sunday.