Republic of Latvia re·pub·li·coflatvia uncommon noun 1. a republic in northeastern Europe on the eastern coast of the Baltic Sea SynonymsLatviaRepublic of Latvia Related words Broader terms Baltic State Parts Europe Part of LivoniaRigaLiepajaDaugavpilsLatvian WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.