Trondheimsk (Urban East Norwegian: [ˈtrɔ̂nː(h)æɪmsk]), Trondheim dialect or Trondheim Norwegian is a dialect of Norwegian used in Trondheim. It is a variety of Trøndersk.

Phonology

Consonants

• /l/ is dental [l̪].^[1]
  • After short vowels, it is realized as an approximant, either palatal [ʎ] or palatalized dental [l̪ʲ].^[2]
  • When it occurs after a short vowel before a voiceless stop (particularly /t/),^[1] it is realized as a voiceless dental lateral continuant, described variously as an approximant [l̪̊]^[1] and a fricative [ɬ̪].^[2]
• /r/ tends to be realized as a voiced retroflex fricative [ʐ]. It is devoiced to [ʂ] before /p/ and /k/.^[2]

Vowels

• /iː/ and /yː/ can be diphthongized to, respectively, [ie] and [ye].^[3]
• /uː/ is diphthongized to [ue].^[4]
• /eː, øː/ and /ɔː/ are diphthongized to, respectively, [eæ], [øæ] and [ɔ̝æ].^[5]
• The schwa [ə] does not exist in the Trondheim dialect.^[6]
• /æ, æː/ have the most open realization in all of Norway, i.e. open front [a, aː].^[7]
• /ɑ, ɑː/ are fully back [ɑ, ɑː].^[8]
• /ɑi/ has a back starting point [ɑi].^[9]

Tonemes

Phonetic realization

The tonemes of the Trondheim dialect are the same as those of the Oslo dialect; accent 1 is low-rising, whereas accent 2 is falling-rising.^[10]