Several linguistic issues have arisen in relation to the spelling of the words euro and cent in the many languages of the member states of the European Union, as well as in relation to grammar and the formation of plurals. In official documents, the name "euro" must be used for the nominative singular in all languages, though different alphabets are taken into account and plural forms and declensions are accepted. In documents other than EU legal texts, including national legislation, other spellings are accepted according to the various grammatical rules of the respective language. For European Union legislation, the spelling of the words for the currency is prescribed for each language; in the English-language version of European Union legislation the forms "euro" and "cent" are used invariantly in the singular and plural, even though this departs from usual English practice for currencies. Written conventions for the euro in the languages of EU member states Languages of the European Union Bulgarian Bulgarian uses Cyrillic. The 1st series of euro banknotes had the word euro written in Latin and Greek alphabets. The Europa series introduced Cyrillic, adopting the spelling ЕВРО, as described below. When Bulgaria issues Euro coins, if the Greek model is followed, the alternative spelling will go on the national (obverse) side. In popular Bulgarian usage the currency is referred to as евро and, less often, (from Bulgarian Европа , meaning Europe); the plural varies in spoken language – евро, евра , еврота – but the most widespread form is евро – without inflection in plural. The word for euro, though, has a normal form with the postpositive definite article – еврото (the euro). The word for eurocent is евроцент and most probably that, or only цент , will be used in future when the European currency is accepted in Bulgaria. In contrast to euro, the word for "cent" has a full inflection both in the definite and the plural form: евроцент (basic form), евроцентът (full definite article – postpositive), евроцентове (plural), 2 евроцента (numerative form – after numerals). The word stotinki (стотинки), singular stotinka (стотинка), the name of the subunit of the current Bulgarian currency can be used in place of cent, as it has become a synonym of the word "coins" in colloquial Bulgarian; just like "cent" (from Latin centum), its etymology is from a word meaning hundred – "sto" (сто). Stotinki is used widely in the Bulgarian