Look up this word
fortress

In a sentence
V slovníku sme si vyhľadali slovo „pevnosť“ a prečítali si jeho význam.
We looked up the word “pevnosť” in the dictionary and read its meaning.
Učiteľ napísal slovo „pevnosť“ na tabuľu a použil ho vo vete.
The teacher wrote the word “pevnosť” on the board and used it in a sentence.
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Hand-reviewed example sentences.
Full attribution on References.