East Asian languages in the context of Macrofamily

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].

A classifier (abbreviated clf or cl) is a word or affix that accompanies nouns and can be considered to "classify" a noun depending on some characteristics (e.g. humanness, animacy, sex, shape, social status) of its referent. Classifiers in this sense are specifically called noun classifiers because some languages in Papua as well as the Americas have verbal classifiers which categorize the referent of its argument.

In languages that have classifiers, they are often used when the noun is being counted, that is, when it appears with a numeral. In such languages, a phrase such as "three people" is often required to be expressed as "three X (of) people", where X is a classifier appropriate to the noun for "people"; compare to "three blades of grass". Classifiers that appear next to a numeral or a quantifier are particularly called numeral classifiers. They play an important role in certain languages, especially East and Southeast Asian languages, including Chinese, Korean, Japanese, and Vietnamese.

A voiced labiodental fricative is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨v⟩.

The sound is similar to voiced alveolar fricative /z/ in that it is familiar to most European speakers but is a fairly uncommon sound cross-linguistically, occurring in approximately 21.1% of languages. Moreover, most languages that have /z/ also have /v/ and similarly to /z/, the overwhelming majority of languages with [v] are languages of Europe, Africa, or Western Asia, although the similar labiodental approximant /ʋ/ is also common in India. The presence of [v] and absence of [w], is a very distinctive areal feature of European languages and those of adjacent areas of Siberia and Central Asia. Speakers of East Asian languages that lack this sound may pronounce it as [b] (Korean and Japanese), or [f]/[w] (Cantonese and Mandarin), and thus be unable to distinguish between a number of English minimal pairs.