splashboard vs protective cover

splashboard and protective cover both are nouns.

Word	Noun	Adjective	Verb	Adverb
splashboard	Yes	No	No	No
protective cover	Yes	No	No	No

As nouns, protective cover is a hypernym of splashboard; that is, protective cover is a word with a broader meaning than splashboard:

splashboard: protective covering consisting of a broad plank along a gunwale to keep water from splashing over the side
protective cover: a covering that is intend to protect from damage or injury

Other hypernyms of splashboard include protection, protective covering.

As nouns, protective cover is a hypernym of splashboard; that is, protective cover is a word with a broader meaning than splashboard:

splashboard: protective covering consisting of a panel to protect people from the splashing water or mud etc.
protective cover: a covering that is intend to protect from damage or injury

Other hypernyms of splashboard include protection, protective covering.

splashboard (noun)	protective cover (noun)
protective covering consisting of a broad plank along a gunwale to keep water from splashing over the side	a covering that is intend to protect from damage or injury
protective covering consisting of a panel to protect people from the splashing water or mud etc.