Realization (linguistics) in the context of "Voiced velar nasal"

A voiced velar nasal, also known as eng, engma, or agma (from Greek ἆγμα âgma 'fragment'), is a type of consonantal sound used in some spoken languages. It is the sound of ng in English sing as well as n before velar consonants as in English and ink. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ŋ⟩. The IPA symbol ⟨ŋ⟩ is similar to ⟨ɳ⟩, the symbol for the retroflex nasal, which has a rightward-pointing hook extending from the bottom of the right stem, and to ⟨ɲ⟩, the symbol for the palatal nasal, which has a leftward-pointing hook extending from the bottom of the left stem.

While almost all languages have /m/ and /n/ as phonemes, /ŋ/ is rarer. Half of the 469 languages surveyed in Anderson (2008) had a velar nasal phoneme; as a further curiosity, many of them limit its occurrence to the syllable coda. The velar nasal does not occur in many of the languages of the Americas, the Middle East, or the Caucasus, but it is extremely common among Australian Aboriginal languages, languages of Sub-Saharan Africa, East Asian and Southeast Asian languages, and Polynesian languages. In many languages that do not have the velar nasal as a phoneme, such as most of the Romance languages, it occurs as an allophone of /n/ before velar consonants. This kind of assimilation can even be found in languages with phonemic voiced velar nasals, such as English. An example of this phenomenon is the word income; its underlying representation, /ˈɪnˌkʌm/, can be realized as either [ˈɪnˌkʌm] or [ˈɪŋˌkʌm].

The pronunciation of the digraph ⟨wh⟩ in English has changed over time, and still varies today between different regions and accents. It is now most commonly pronounced /w/, the same as a plain initial ⟨w⟩, although some dialects, particularly those of Scotland, Ireland, and the Southern United States, retain the traditional pronunciation /hw/, generally realized as [ʍ], a voiceless "w" sound. The process by which the historical /hw/ has become /w/ in most modern varieties of English is called the wine–whine merger. It is also referred to as glide cluster reduction.

Before rounded vowels, a different reduction process took place in Middle English, as a result of which the ⟨wh⟩ in words like who and whom is now pronounced /h/. (A similar sound change occurred earlier in the word how.)

The International Phonetic Alphabet (IPA) can be used to represent sound correspondences among various accents and dialects of the English language.

These charts give a diaphoneme for each sound, followed by its realization in different dialects. The symbols for the diaphonemes are given in bold, followed by their most common phonetic values.