Marine (7)
'marine' is the definition.
(synonyms)
This is all the clue.
(Other definitions for nautical that I've seen before include "Marine" , "Relating to sailors" , "Seafaring" , "about boats" , "To do with ships and the sea" .)
'marine' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for aquatic that I've seen before include "Relating to water" , "Of the water, its animals, its sports" , "At home in water" , "Linked to water" , "Pertaining to water" .)
(Other definitions for corps that I've seen before include "Army unit" , "Military unit" , "Branch of an army" , "Part of an army" , "Military body" .)