rupee has 6 distinct synonyms spread across 6 of its 6 senses. 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.
the basic unit of money in Sri Lanka; equal to 100 cents
the basic unit of money in Seychelles; equal to 100 cents
Synonyms, antonyms and the broader and narrower relations for rupee come from Princeton University’s WordNet. Full sources and licences.
the basic unit of money in Nepal; equal to 100 paisa
the basic unit of money in Mauritius; equal to 100 cents
the basic unit of money in Pakistan; equal to 100 paisa
the basic unit of money in India; equal to 100 paise