This is the 2446th most frequent Dutch word.
wonnen
"Wonnen" (past tense of "winnen") means "won" in English, as in achieving victory or success.
Here, 'wonnen' is the past tense of the verb 'winnen', meaning 'to win'.
Wij wonnen de wedstrijd gisteren.
We won the match yesterday.
In this sentence, 'wonnen' is again the past tense of 'winnen', but the word play suggests 'gaining' experience.
Toen ze in Nederland woonden, wonnen ze veel ervaring.
When they lived in the Netherlands, they gained a lot of experience.
Here, 'won' is used in a casual narrative context also derived from 'winnen' and denotes a successful outcome.