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nationwide

In a sentence
Ide o celoslovenskú súťaž pre študentov.
It is a nationwide competition for students.
Celoslovenská súťaž má finále v Košiciach.
The nationwide competition has its final in Košice.
Projekt má celoslovenský dosah a podporu škôl.
The project has nationwide reach and school support.
Celoslovenský prieskum zverejnili v utorok.
They published the nationwide Slovak survey on Tuesday.
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Hand-reviewed example sentences.
Full attribution on References.