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official

In a sentence
Slovenčina je úradným jazykom Slovenskej republiky.
Slovak is the official language of the Slovak Republik.
Úradným jazykom Tamilnádu je tamilčina.
The official language of the state Tamil Nadu is Tamil.
Tamilčina je úradným jazykom Tamilnádu.
Tamil is the official language of Tamil Nadu.
Úradný preklad dokumentu vyžaduje pečiatku.
An official translation of the document requires a stamp.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Includes Tatoeba example sentences when present.
Full attribution on References.