/m,p,b,w/ are bilabial, and/f,v/ are labiodental.[3]
/w/ is often included with the diphthongs, rather than the consonants, as it occurs only in rising diphthongs and sequences of a long vowel followed by glide (see the Diphthongs section). However, since they are analysed and transcribed as consonants in this article,/w/ is included here as a consonant./w/ contrasts with/v/ in for example the pairbelove/bəˈloːvə/ -bliuwe/ˈbljoːwə/.
/r/ does not occur before other alveolar consonants.[4][5] An exception to that rule are recent loanwords from Standard Dutch (sport), which may or may not be pronounced with[r].[6]
The alveolar/s,z/ arelaminal, laxer than in English (with graver friction) and are variably retracted to[s̠,z̠], depending on the environment. The phonetic affricates[ts,dz] (as intsiis[tsiːs] 'cheese' andskodzje[ˈskɔdzjə] 'shake') are subject to the same kind of variation.[7] As in Greek,[ts] and[dz] are considered to be stop–fricative sequences in their underlying form.
/ŋ,k,ɡ,ɣ/ are velar,/χ/ is a post-velar fricative trill[ʀ̝̊˖] and/j/ is palatal.[8][9][10]
Among fricatives, neither/χ/ nor any of the voiced fricatives can occur word-initially[11] except for/v/.
Glottal stop[ʔ] may precede word-initial vowels. In careful speech, it may also occur between unstressed and stressed vowels or diphthongs.[12]
All consonants are unaspirated, as in Dutch. Thus, the voiceless plosives/k/,/t/,/p/ are realized[k],[t],[p].
/v/ has twoallophones: an approximant[ʋ], which appears word-initially, and a fricative[v], which occurs elsewhere.[13]
The distinction between/ɡ/ and/ɣ/ is very marginal, and they are generally considered allophones of a single phoneme. The plosive[ɡ] generally appears at the beginning of a word and at the beginning of a stressed syllable, with the fricative[ɣ] occurring elsewhere.[14][15] However, there are some cases that disturb that distribution, which shows that the allophony is not only caused by stress but also has a morphological factor:
Compound words preserve intact each allophone of the individual words:berchgeit[ˈbɛrɣɡait]'mountain goat' andneedgefal[ˈneːdɡəfɔl]'emergency'. That demonstrates plosive[ɡ] before unstressed syllables.
Some suffixes draw the stress onto themselves without readjusting the allophones:hartoch[ˈhatɔχ]'duke' →hartoginne[hatɔˈɣɪnə]'duchess'. That creates cases of fricative[ɣ] before stressed syllables.
Thus, it appears that the underlying representation of words includes the plosive-fricative distinction. In single-morpheme words, that representation follows the above rule of allophony, but in words with multiple morphemes the underlying status (plosive or fricative) must be known to recover the correct pronunciation.
The schwa/ə/ is often dropped in the combination/ən/, which turns the/n/ into a syllabic sonorant. The specific sonorant that arises depends on the preceding consonant and so it is labial[m̩] when it is preceded by labial[m,p,b], alveolar[n̩] when it is preceded by labiodental or alveolar/f,v,n,t,d,s,z,r,l/, and velar[ŋ̍] when preceded by velar/k,ɣ/.[16]
The schwa is commonly dropped also in/əl/ and/ər/, creating the syllabic sonorants[l̩] and[r̩], respectively. There are also some other cases.[16]
The sequences/sj,zj/ coalesce to[ɕ,ʑ], unless/j/ occurs as a part of the rising diphthongs/jɪ,jɛ,jø/. [Citation required]
West Frisian hasfinal obstruent devoicing and so voiced obstruents are merged with the voiceless obstruents at the end of words. Thus, word-final/b,d,v,z,ɣ/ are merged into voiceless/p,t,f,s,χ/, although final/b/ is rare.[17] The spelling reflects that in the case of the fricatives but not in the case of the plosives, which are still written⟨b⟩ and⟨d⟩.
The long vowels are considerably longer than the short vowels. The former are generally over 250 ms, and the latter are generally under 150 ms.[20][21]
Some speakers merge the long vowels/iː,uː/ with the centering diphthongs/iə,uə/.[22]
/yː/ is infrequent.[23] It and the other long close rounded vowel/uː/ are absent in theLeeuwarden dialect.[24]
/ø/ is phonetically central[ɵ] and is quite similar to/ə/. It can be treated as its stressed equivalent.[clarification needed][25][26] In phonemic transcription, many scholars[27] transcribe it with ⟨ø⟩, but ⟨ɵ⟩ and ⟨ʏ⟩ are occasionally used instead.[28]
Although they pattern with monophthongs, the long close-mid vowels transcribed/eː,øː,oː/ are often realized as narrow closing diphthongs[ei,øy,ou].[29][30] However, there are exceptions: for instance, speakers of the Hindeloopers dialect realize/øː/ as a long monophthong[øː].[24] Nearly all words with/øː/ are loanwords from Standard Dutch.[31]
Although they pattern with monophthongs, the long open-mid vowels transcribed/ɛː,ɔː/ tend to be realized as centring diphthongs[ɛə,ɔə].[32][33]
The Hindeloopers and the Súdwesthoeksk dialects also feature open-mid front rounded vowels/œ,œː/, which are not a part of the standard language.[24][34]
Many scholars[27] transcribe/a/ with ⟨a⟩, butde Haan (2010) transcribes it with ⟨ɑ⟩, following the usual transcription of the short open vowel in Dutch.[35] Its phonetic quality has been variously described as central[ä][20] and back[ɑ].[35]
In southwestern dialects, the sequences/wa,wo/ are monophthongized to short central[ɞ,ɵ].[36]
The closeness of both elements of/ɛi/ is somewhat variable and so its phonetic realization is[æi~æɪ~ɛi~ɛɪ].[37]
The first element of/œy/ is more like[œ] than[ø].[37] Many scholars[38] transcribe the sound as/øy/,Booij (1989) transcribes it as/ʌy/, but this article transcribes it/œy/ to show that it is clearly distinct from the common diphthongal realization of/øː/ since it has a much lower starting point), and it is virtually identical to/œy/ in Standard Dutch.
Some scholars[39] transcribe/ɔu/ as/ɔu/, but others[40] transcribe it as/au/. Phonetically, the first element of the diphthong may be either[ɔ] or less often[a].[41]
Some varieties realize/ai/ as[ɔi].[18] It is replaced by/ɛi/ in theWood Frisian dialects.
Frisian is traditionally analysed as having both falling and rising diphthongs.Booij (1989) argues that the rising diphthongs are in fact glide-vowel sequences, not real diphthongs.[42] That view is supported byHoekstra & Tiersma (2013) who transcribe them with consonant symbols/jɪ,jɛ,wa,wo/,[43] which is the convention that is used in this article.
Frisian also possesses sequences of a long vowel followed by a glide. According to Booij, the glide behaves as a consonant in such sequences since it is shifted entirely to the next syllable when a following vowel is added. Visser[44] also includes sequences of a high vowel plus glide among these. Such sequences are transcribed with a consonant symbol in this article:
Collins, Beverley; Mees, Inger M. (1982), "A phonetic description of the consonant system of Standard Dutch (ABN)",Journal of the International Phonetic Association,12 (1):2–12,doi:10.1017/S0025100300002358,JSTOR44526677
Gussenhoven, Carlos (1999)."Dutch".Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet. Cambridge: Cambridge University Press. pp. 74–77.ISBN0-521-65236-7. Retrieved16 February 2020.
Hoekstra, Jarich (2001). "12. Standard West Frisian". In Munske, Horst Haider; Århammar, Hans (eds.).Handbook of Frisian studies. Tübingen: Max Niemeyer Verlag GmbH. pp. 83–98.ISBN3-484-73048-X. Retrieved30 March 2017.
Hoekstra, Jarich; Tiersma, Peter Meijes (2013) [First published 1994]. "16 Frisian". In König, Ekkehard; van der Auwera, Johan (eds.).The Germanic Languages. Routledge. pp. 505–531.ISBN978-0-415-05768-4. Retrieved30 March 2017.
Hof, Jan Jelles (1933).Friesche Dialectgeographie(PDF) (in Dutch). The Hague: Martinus Nijhoff.Archived(PDF) from the original on 7 October 2016. Retrieved30 March 2017.
Keil, Benjamin (2003)."Frisian phonology"(PDF). Los Angeles: UCLA Department of Linguistics.Archived(PDF) from the original on 4 March 2016. Retrieved30 March 2017.
Tiersma, Peter Meijes (1999) [First published 1985 in Dordrecht by Foris Publications].Frisian Reference Grammar (2nd ed.). Leeuwarden: Fryske Akademy.ISBN90-6171-886-4.
van der Veen, Klaas F. (2001). "13. West Frisian Dialectology and Dialects". In Munske, Horst Haider; Århammar, Hans (eds.).Handbook of Frisian studies. Tübingen: Max Niemeyer Verlag GmbH. pp. 98–116.ISBN3-484-73048-X. Retrieved30 March 2017.
Visser, Willem (1997).The Syllable in Frisian(PDF) (PhD). Leiden: Holland Institute of Generative Linguistics.ISBN90-5569-030-9.Archived(PDF) from the original on 4 March 2016. Retrieved30 March 2017.
Cohen, Antonie; Ebeling, Carl L.; Fokkema, Klaas; van Holk, André G.F. (1978) [First published 1961].Fonologie van het Nederlands en het Fries: inleiding tot de moderne klankleer (in Dutch) (2nd ed.). The Hague: Martinus Nijhoff.
Fokkema, Klaas (1961). "Consonantgroepen in de Zuidwesthoek van Friesland". In Heeroma, Klaas Hanzen; Fokkema, Klaas (eds.).Structuurgeografie (in Dutch). Amsterdam: Noord-Hollandsche Uitg. Mij. pp. 16–26.
Tiersma, Peter Meijes (1983). "The nature of phonological representation: evidence from breaking in Frisian".Journal of Linguistics.10 (1):59–78.doi:10.1017/S0022226700007453.JSTOR4175665.