

Die Reparatur ist kostenlos.
[Die Reparatur ist kostenlos.]
The repair is free of charge.
Ist die Rücksendung wirklich kostenlos?
[Ist die Rücksendung wirklich kostenlos?]
Is returning it really free?
Wir tauschen das Gerät kostenlos um.
[Wir tauschen das Gerät kostenlos um.]
We'll exchange the device free of charge.
"kostenlos" is in the lesson "Issues" (Level 45), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.