This is the 211th most frequent Catalan word.
nostres
"Our" (plural).
Here 'nostres' is a possessive adjective in the plural form, agreeing with 'amigues' in both gender (feminine) and number (plural).
Aquestes són les nostres amigues.
These are our friends.
In this sentence, 'nostres' modifies 'projectes' and must match in plural form and gender (masculine plural).
Els nostres projectes avancen bé.
Our projects are progressing well.
Here, 'nostres' indicates possession for 'triomfs' and thus agrees in gender (masculine) and number (plural).