This is the 25th most frequent Slovenian word.
vse
"Vse" means "everything" or "all" in English.
In this sentence, 'vse' is used as a pronoun meaning 'everything', referring to all items that were tidied up.
Vse sem pospravil, kot si rekla.
I cleaned everything up, as you said.
Here, 'vse' functions as a quantifier adjective modifying 'ljudi,' emphasizing the totality of the group of people.
Vse te ljudi poznam iz osnovne šole.
I know all these people from elementary school.
In this construction, 'vse' again acts as a pronoun signifying 'everything', this time in relation to the reliance on weather conditions.