(nynorsk) munnstykke betyr engelsk

cigarette holder▼(a device used to hold a cigarette)
noun
[UK: ˌsɪ.ɡə.ˈret ˈhəʊl.də(r)] [US: ˌsɪ.ɡə.ˈret ˈhoʊl.də(r)]

mouthpiece [mouthpieces]▼(part of a wind or brass instrument)
noun
[UK: ˈmaʊθ.piːs] [US: ˈmaʊθ.ˌpis]