Look up this word
millennium

In a sentence
V slovníku sme si vyhľadali slovo „tisícročie“ a prečítali si jeho význam.
We looked up the word “tisícročie” in the dictionary and read its meaning.
Učiteľ napísal slovo „tisícročie“ na tabuľu a použil ho vo vete.
The teacher wrote the word “tisícročie” 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.