This is the 310th most frequent German word.
machte
"machte" = "made" or "did" (past tense of "machen").
In this context, 'machte' is the simple past tense of 'machen', meaning 'to do' or 'to make'. It depicts a completed action in the past.
Er machte die Hausaufgaben.
He did the homework.
Here, 'machte' is used to describe an action of making something happen, specifically to open the window, in the past tense.
Sie machte das Fenster auf.
She opened the window.
In this usage, 'machten' indicates a reflexive action in the past where preparation is involved, showcasing 'machen' combined with reflexive pronouns.