svr has 2 distinct synonyms spread across 1 of its 1 sense. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
Russia's intelligence service responsible for foreign operations, intelligence-gathering and analysis, and the exchange of intelligence information; collaborates with other countries to oppose proliferation of weapons of mass destruction, terrorism and organized crime
Synonyms, antonyms and the broader and narrower relations for svr come from Princeton University’s WordNet. Full sources and licences.