mare liberum
ma·re li·be·rum
noun \ˈmär-(ˌ)ā-ˈlē-bə-ˌru̇m\Definition of MARE LIBERUM
1
: a navigable body of water (as a sea) that is open to all nations
Origin of MARE LIBERUM
New Latin, literally, free sea
First Known Use: 1652
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