German

Noun

WM f ‎(genitive WM, plural WMs or WM's or WM)

1. Abbreviation of Weltmeisterschaft ‎(“world championship, World Cup”).

Usage notes

• The normal plural is WMs.
• The spelling WM’s with an apostrophe is not official standard, but is often seen. The unchanged plural WM is rare.

Etymology 2

Noun

WM f ‎(genitive WM, no plural)

1. (apartment listing) Abbreviation of Warmmiete ‎(“rent including heating costs”).