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ocean

In a sentence
Atlantický oceán je veľmi veľký.
The Atlantic Ocean is very big.
Na dne oceánu je piesok.
There is sand at the bottom of the ocean.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.