This is the 455th most frequent Slovenian word.
meseca
The Slovenian word "meseca" means "of the month" in English.
Here, 'mesec' is used in the genitive case ('meseca') to indicate possession or relationship in the context of a time period.
Ta mesec praznujemo rojstni dan.
This month we celebrate a birthday.
'Mesec' appears in the locative case ('mesecu'), used to indicate location in the metaphorical sense of being 'in' a particular month.
V mesecu maju veliko dežuje.
In the month of May, it rains a lot.
In this sentence, 'meseci' is in the plural dative case ('meseca'), showing the indirect object of the action.