This is the 305th most frequent Slovak word.
noci
The Slovak word "noci" means "of the night" or "nights" (genitive singular or nominative/accusative plural of "noc").
The word 'noci' is used in the genitive singular case, describing a specific past night.
Minulú noci sme počuli sovu.
Last night, we heard an owl.
Here, 'nocí' is in the genitive plural case, referring to multiple nights.
Mám rád ticho nočných nocí na vidieku.
I enjoy the silence of rural nights in the countryside.
In this case, 'noci' is in the locative singular case, indicating the time frame during a certain night.