Malayalam phonology comprises the sound system of the Malayalam. It is characterized by a large consonant inventory, including true subapical retroflexes and a phonemic distinction in vowel length. The language also maintains clear contrasts among dental, alveolar, and retroflex places of articulation.
For the consonants and vowels, the International Phonetic Alphabet (IPA) symbol is given, followed by the Malayalam character and the ISO 15919 transliteration. [2] The current Malayalam script bears high similarity with Tigalari script, which was used for writing the Tulu language, spoken in coastal Karnataka (Dakshina Kannada and Udupi districts) and the northernmost Kasargod district of Kerala. [3] Tigalari script was also used for writing Sanskrit in Malabar region.
| Short | Long | |||||
|---|---|---|---|---|---|---|
| Front | Central | Back | Front | Central | Back | |
| Close | /i/ഇ | /u/ഉ | /iː/ഈ | /uː/ഊ | ||
| Mid | /e/എ | /ə̆/് | /o/ഒ | /eː/ഏ | /oː/ഓ | |
| Open | /a/അ | /aː/ആ | ||||
Malayalam has also borrowed the Sanskrit diphthongs of /ai̯/ (represented in Malayalam as ഐ, ai) and /au̯/ (represented in Malayalam as ഔ, au) although these mostly occur only in Sanskrit loanwords. Traditionally (as in Sanskrit), four vocalic consonants (usually pronounced in Malayalam as consonants followed by the saṁvr̥tōkāram, which is not officially a vowel, and not as actual vocalic consonants) have been classified as vowels: vocalic r (ഋ, /rɨ̆/, r̥), long vocalic r (ൠ, /rɨː/, r̥̄), vocalic l (ഌ, /lɨ̆/, l̥) and long vocalic l (ൡ, /lɨː/, l̥̄). Except for the first, the other three have been omitted from the current script used in Kerala as there are no words in current Malayalam that use them.
Some authors say that Malayalam has no diphthongs and /ai̯,au̯/ are clusters of V+glide j/ʋ [5] while others consider all V+glide clusters to be diphthongs /ai̯,aːi̯,au̯,ei̯,oi̯,i̯a/ as in kai, vāypa, auṣadhaṁ, cey, koy and kāryaṁ [2]
Vowel length is phonemic and all of the vowels have minimal pairs; for example kaṭṭi "thickness", kāṭṭi "showed", koṭṭi "tapped", kōṭṭi "twisted, stick, marble", er̠i "throw", ēr̠i "lots" [2]
Vowels tend to be fronted around palatalized consonants and backed around velarized consonants. [6]
Some speakers also have /æː/,/ɔː/,/ə/ from English loanwords; e.g. /bæːŋgɨ̆/ "bank" but most speakers replace it with /aː/,/eː/ or /ja/; /oː/ or /aː/ and /e/ or /a/. [5]
| Labial | Dental | Alveolar | Retroflex | Postalveolar/ Palatal | Velar | Glottal | ||
|---|---|---|---|---|---|---|---|---|
| Nasal | m മ | n̪ ന | n ന / ഩ [a] | ɳ ണ | ɲ ഞ | ŋ , ( ŋʲ ) ങ | ||
| Plosive/ Affricate | voiceless | p പ | t̪ ത | t റ്റ | ʈ ട | t͡ɕ ~ t͡ʃ ച | k , ( kʲ ) ക | |
| aspirated | pʰ ഫ | t̪ʰ ഥ | ʈʰ ഠ | t͡ɕʰ ~ t͡ʃʰ ഛ | kʰ ഖ | |||
| voiced | b ബ | d̪ ദ | ( d ) [b] ന്റ | ɖ ഡ | d͡ʑ ~ d͡ʒ ജ | ɡ ഗ | ||
| breathy | bʱ ഭ | d̪ʱ ധ | ɖʱ ഢ | d͡ʑʱ ~ d͡ʒʱ ഝ | ɡʱ ഘ | |||
| Fricative | f ഫ | s , ( z ) സ | ʂ ഷ | ɕ ~ ʃ ശ | h ഹ | |||
| Approx. | central | ʋ വ | ɻ ഴ [c] | j യ | ||||
| lateral | l ല | ɭ ള | ||||||
| Tap | ɾ ര | |||||||
| Trill | r റ | |||||||
Source: [15]