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| English | Estonian |
| black coal A natural black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds | kivisüsi |
| Black Sea No definition needed | Must meri |
| Black Sea Environmental Partnership | keskkonnaalane partnerlus Musta mere piirkonnas |
| Convention on the Protection of the Black Sea against Pollution | Musta mere reostuse eest kaitsmise konventsioon |