The front rounded vowels appear only in loanwords from French and Standard German. In loanwords from French, nasal also occur. has two allophones: Before velars: close-mid front unrounded , which, for some speakers, may be open-mid , especially before . The same variation in height applies to , which may be as open as . All other positions: mid central vowel, more often slightly rounded than unrounded . Phonetically, the long mid vowels are raised close-mid (near-close) and may even overlap with . before is realised as . is the long variant of , not , which does not have a long counterpart.
The front rounded vowels appear only in loanwords from French and Standard German. In loanwords from French, nasal also occur. has two allophones: Before velars: close-mid front unrounded , which, for some speakers, may be open-mid , especially before . The same variation in height applies to , which may be as open as . All other positions: mid central vowel, more often slightly rounded than unrounded . Phonetically, the long mid vowels are raised close-mid (near-close) and may even overlap with . before is realised as . is the long variant of , not , which does not have a long counterpart.