Vowels
The vowel nucleus consists of a simple vowel, which may be preceded by y or w. The McCune-Reischauer romanization puts a breve (Ë) over the letters u and o to distinguish the originally unrounded vowels [ɨ] and [É] (= Seoul [É]) from their rounded counterparts [u] and [o]. (Unrounded vowels are said with a tight smile; rounded vowels with pursed lips.) The Yale romanization uses the letter u for the unrounded [ɨ] and writes [u] as wu but encourages the omission of the w after p, ph (= pâ), pp, m, and y, where the rounding has become nondistinctive in modern Korean. The front vowels transcribed as e = [e], and ae = [Îľ] or [ĂŚ] were originally diphthongs, as shown by the complex Hangul symbols reflected in the ey and ay of the Yale romanization. The vowel ae is no longer kept distinct from e in southern Korea and the distinction is virtually lost in modern Seoul, though it is maintained in the spellings. Another old diphthong, originally [oy], is transcribed oe (Yale oy) and sometimes pronounced as a front rounded vowel [Ăś], though it commonly sounds the same as the less common diphthong we, which is often simplified to just e; the surname Châoe may be said as if spelled Châwe or Châe. The old diphthong [uy] became modern wi [wi] and is so pronounced by most speakers, but some people use a front rounded vowel [Ăź]. The old diphthong Ĺi [ɨy], into which Äe [Éy] merged, was largely replaced by [ɨ] (initially) or [i], but it is maintained in spelling certain words of Chinese origin such as ĹiĹi [ɨ:i] âmeaningâ and in writing the particle -Ĺi [e] âofâ (but not the homonymous particle -e âtoâ or âinâ). The older version as a diphthong has regained popularity in modern Seoul in words such as Ĺija âchairâ (said as three syllables), probably as a result of âreadingâ pronunciations.
Consonants
When they are initial, the simple stops p, t, and k are pronounced much as in English (pie, tie, kite), with light aspiration. When final, they are cut off with no release, as in one way of saying English âUp! Out! Back!â. The affricate ch occurs in the word chip âhouse,â which is pronounced with a sound intermediate between English chip and cheap; some speakers, especially before the back vowels, pronounce the affricate as a nonpalatalized [ts], and that is thought to have been its 15th-century pronunciation. Between voiced sounds (which include the vowels and y, w, m, n, ng, l, and r), the stops acquire voicing, and that feature is noted in the McCune-Reischauer romanization (but not in the Hangul spelling or the Yale romanization): ip âmouthâ but ib-e âin the mouth,â mat âfirstbornâ but mad-adĹl âeldest son,â ak âevilâ but ag-in âevil person.â Final -p sometimes represents a basic pâ (ap âfrontâ but apâ-e âin frontâ) or ps [pss] (kap âpriceâ but kaps-Ĺl âthe price [as object]â). A final t sometimes represents a basic tâ (mit âbottomâ but mitâ-e âat the bottomâ), j (nat âdaytimeâ but naj-e âin the daytimeâ), or châ (kkot âflowerâ but kkochâ-ida âitâs a flowerâ); more often, however, a final t represents a basic s (ot âgarmentâ but os-Ĺl âthe garment [as object]â). Some speakers regularize the basic forms of nouns (but not verb stems) so that for them the nonfinal t always represents basic s; they say pas-ey for the standard patâ-ey âin the field.â The single liquid phoneme has two predictable pronunciations: a clear (and sometimes palatalized) lateral [l] when it is at the end of a syllable or doubled [-l:l-], otherwise (and also before h) the flap [r]. The McCune-Reischauer transcription writes l or r in accordance with the pronunciation, which is ignored by the Hangul spelling and the Yale romanization: il âoneâ but ir-wĹn âone WĹn,â nal âdayâ and nal-lo âby the dayâ but nar-e âon the day.â There are problems involving initial r and n that are reflected in newspaper references to âPresident Roh (pronounced No).â The Korean language borrowed some Chinese words beginning with a liquid ([l] in Chinese), and Koreans tried to pronounce them with an r, but they were generally successful only when the element was not initial in a word; when the liquid was initial they used an n instead. The second syllable of toro âstreetâ is the same element as the first syllable of nosang âon the streetâ (which is spelled with an n- in South Korea but with an r- in North Korea). There is an added complication: in the south ny- and ni- (whether from original n- or from r-) dropped the nasal, and that is when the common surname borrowed from Chinese LÄ became Yi. The name is still pronounced [ni] in parts of North Korea, though the reading pronunciation [ri] has spread in PâyĹngyang since 1945. In modern times, loanwords from English, Japanese, and Russian have brought in an initial [r], and that is usually pronounced as a flap.
Assimilations
The spoken syllables are fairly simple in structure. Each ends either in a vowel or in one of the voiced consonants p, t, k, m, n, ng, or l. When two syllables are put together, various changes may take place where they join. When a syllable that ends in a stop is followed by one that begins with a nasal, the stop assimilates: chip âhouseâ + -man âonlyâ sounds just like chim âburdenâ + -man [Äimman], and kung-min can mean either âthe people of the nationâ (when the first syllable is kuk- ânationâ) or âthe poor peopleâ (when the first syllable is kung- âpoorâ). Hangul spelling distinguishes such pairs by writing the basic forms. Before a velar (k, kâ, kk), the dental n is usually pronounced like the velar ng so that kanâgo âhardshipâ sounds like kanggo âstable,â but that assimilation is ignored in both the spelling and the transcriptions. Both -n + l- and -l + n- are pronounced like -l + l-, so for the sound [-l:l-] one must know what is in the word to decide which of the three Hangul spellings to use.
Aspirated and reinforced consonants
English makes a two-way distinction of voiceless and voiced stops (pip, bib; tat, dad; kick, gig). In Korean, voicing is automatic, so that [p] and [b] form a single phoneme and are written with the same Hangul letter. Korean distinguishes two other kinds of obstruents (stops, or fricatives): heavily aspirated pâ, tâ, kâ, and châ and reinforced (tense) pp, tt, kk, and tch. The standard language also has a tense sibilant ss in contrast with the lax (and somewhat aspirated) s, but many speakers maintain this distinction only at the beginning of a word or ignore it entirely, despite the spelling. Both kinds of s are palatalized before i or y, and the lax s sounds like English sh, so that the Silla kingdom is sometimes referred to as the Shilla kingdom. (The Yale transcription for this name, Sinla, shows the Hangul spelling.) The reinforced consonants, now written as geminates (duplicate letters), probably became distinctive through the reduction of clusters, such as Middle Korean st, pst, and pt, and in many words the heavily aspirated consonants seem to go back to earlier clusters with h or k. The clusters, in turn, were reduced from disyllabic strings by syncope (omitting the vowel). The simple aspirate h is often murmured or dropped between voiced sounds: si(h)Ĺm âtest,â annyĹng (h)ase-yo âHow are you?â That accounts for the [r] in words like sir(h)Ĺm âexperiment.â Before i the velar nasal is often reduced to no more than nasality: annyĹng (h)i kase-yo âGood-bye to you who are leavingâ is usually pronounced [annyÉÄŠgas].
Reinforcement
When p, t, k, ch, or s is preceded by a stop, it is automatically pronounced as reinforced (tense), but that sound feature is ignored both in the Hangul spellings and in the transcriptions: ip-to âthe mouth tooâ = /iptto/, ot-kwa âwith the garmentâ = /o(t)kkwa/, kuk-poda âthan the soupâ = /kukppoda/, hakcha âscholarâ = /haktcha/, iksal âjokeâ = /ikssal/. After the adnominal ending -(Ĺ)l there is reinforcement unless a pause is inserted: pol kot âthe place to lookâ sounds just like pol kkot âthe flower to look at,â but they are spelled and transcribed differently. Other cases of reinforcement are less predictable and are variously treated or neglected in spellings and transcriptions. In some cases the reinforcement goes back to the Middle Korean particle s âof.â
Liaison
When a Korean syllable that begins with a vowel is added to a syllable that ends in a consonant, that coda moves over to fill the empty onset slot of the second syllable: chip âhouseâ + -e âtoâ is romanized chib-e but pronounced /Äi-be/, pap ârice/mealâ + -Ĺl (direct object) is spelled pab-Ĺl but said as /pa-bĹl/, and tong-an âintervalâ is heard as /to-Ĺan/.