| A | B |
| Archipelago | a large group of islands (Haiwaii) |
| Atoll | ring of coral that encloses a pool of sea water |
| Bay | a body of water that extends into land |
| Canyon | a deep valley steep sides (formed by water) |
| Cape | a point of land that juts out into water |
| Channel | a body of water that connects two larger bodies of water (English Channel) |
| Canal | man made body of water that connects two larger bodies of water |
| Cliff | a high steep face of rock (escarpment) |
| Delta | a fan shaped deposit of sand and mud a mouth of a river |
| Fjord (fee-yord) | a long narrow inlet of sea between cliffs or slopes |
| Geyser | a spring that spouts hot water or steam |