From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
Zipp /tsˈɪp/ <masc, n, sg>
[Ös.] [textil.] zip fastener <n>, zip fastening <n> [Br.] , zip <n> [Br.] , zipper closure <n>, zipper <n> [Am.] [Austr.]
Synonyms: Reißverschluss, Reißverschluß, Zipper, Zippverschluss
see: Reißverschlüsse, Zipper, Zippverschlüsse, Zippen