14 entries under hydrographic topic. ×

11
thalassic(adjective, sea, nautical, underwater, oceanographic)
10
seagoing(adjective, sea, ocean, oceanographic)
7
ocean-going(adjective, sea, oceanographic)
4
deep-sea(adjective, sea, oceanographic)
3
oceanographic(adjective, sea)
3
saltwater(adjective, sea, oceanographic)
2
coastal(adjective, sea, oceanographic)
2
littoral(adjective, sea, oceanographic)
2
of the sea(expression, idiom, oceanographic)
1
Neptunian(adjective, sea, oceanographic)
1
natatorial(adjective, sea, oceanographic)
1
oceangoing
1
seaside(adjective, sea, oceanographic)
1
shore(adjective, sea, oceanographic)
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APASmart Define. (2016). marine thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/marine/thesaurus/synonyms
ChicagoSmart Define. 2016. "marine thesaurus" https://smartdefine.org/marine/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, marine thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/marine/thesaurus/synonyms>.
MLASmart Define. "marine thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/marine/thesaurus/synonyms>