This is the 567th most frequent Slovenian word.
ekipi
The Slovenian word "ekipi" means "teams" in English (dative/locative or dual nominative form of "ekipa").
'Ekipi' here is in the dative singular form to indicate the recipient of joining.
Pridružil se je ekipi, ki raziskuje Antarktiko.
He joined the team that is exploring Antarctica.
Here, 'ekipe' is used as the nominative singular form referring to a team, indicating a group working together.
Ekipa sodeluje skupaj, da doseže cilj.
The team works together to achieve the goal.
In this sentence, 'ekipi' is in the dative singular form, used to indicate the indirect object of giving instructions.