| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | bordering the water |
| Synonyms: | along a coast, littoral, marginal, marshy, riverine, seaside, skirting |
| Main Entry: | marine |
| Part of Speech: | adjective |
| Definition: | sea |
| Synonyms: | Neptunian, abyssal, aquatic, coastal, deep-sea, hydrographic, littoral, maritime, natatorial, nautical, naval, navigational, ocean-going, oceanic, oceanographic, pelagic, saltwater, sea, seafaring, seagoing, seashore, seaside, shore |
| Antonyms: | freshwater |
| Main Entry: | thalassic |
| Part of Speech: | adjective |
| Definition: | marine |
| Synonyms: | Neptunian, abyssal, aquatic, coastal, deep-sea, hydrographic, littoral, maritime, natatorial, nautical, naval, navigational, oceangoing, oceanic, oceanographic, of the sea, pelagic, saltwater, sea, seafaring, seagoing, seashore, seaside, shore |