This is the 753rd most frequent Estonian word.
talve
"Talve" in English means "winter".
Here, 'talve' is the genitive form of 'talv' (winter), used to indicate 'of winter'.
Talve ajal sajab tihti lund.
During winter, it often snows.
Here, 'talve' is in the genitive case, used to describe 'the start of winter'.
Pärast talve algust päevad muutuvad pikemaks.
After the start of winter, the days get longer.
In this sentence, 'talve' is in the genitive case, describing the possession or the purpose 'for the winter'.