n. — Sunshine Coast (British Columbia)
a rope hung close to shore so that the user can swing out from the bank and plunge into the water.
Type: 1. Origin — The term is specific to the Powell River Regional District, BC (see the 2009 quotation) and has acquired status as a local linguistic marker. It appears to be a phonetically adapted loan word from Swedish "svänga" or "gunga", "swing" in English. Swedish was an important early immigrant language in the area. For instance, Lund, an unincorporated village thirty kilometres north of Powell River, was first settled by Swedish brothers Charles and Frederick Thulin in 1889 (Akrigg & Akrigg 1997: 158), and is, together with Powell River, home to many of Swedish descent. The term is mostly used in the spoken domain (but see Image 1).
Images:

Image 1: Depiction of a zunga on a beer type of that name.
Photo: Kate Butkus, used by permission