# 유

| 유 | U+C720, &#50976; HANGUL SYLLABLE YU |
| Composition: | ㅇ + ㅠ |
| ← 윟 [U+C71F] | Hangul Syllables | 육 → [U+C721] |
유육윢윣윤윥윦 윧율윩윪윫윬윭 윮윯윰윱윲윳윴 융윶윷윸윹윺윻 :
| 위 ← | → 으 |

## Korean
### Etymology 1

Sino-Korean word from 有, from the Middle Korean reading 유 (Yale: yu).

#### Pronunciation

* (SK Standard/Seoul) IPA: [ju(ː)]
* Phonetic hangul: [유(ː)]
** Though still prescribed in Standard Korean, most speakers in both Koreas no longer distinguish vowel length.

#### Noun

유 • (yu) (hanja 有)
* existence, being (especially in contrast to the concept of nothingness or non-existence)
    Antonym: 무(無) (mu, “nothing, nothingness”)
    무에서 유를 창조하다mu-eseo yu-reul changjohadato create something out of nothing
** 1918, Han Yong-un, 한용운(韓龍雲), “心(심) (Sim) [The Heart]”, in 惟(유)心(심), number 1:心(심)은 無(무)의 實(실)在(재)오 有(유)의 眞(진)空(공)이니라Sim-eun mu-ui siljae-o yu-ui jin'gong-iniraThe heart is the manifestation of non-existence and the vacuum of existence.

#### Prefix

유— • (yu-) (hanja 有)
* there is..., having...; a prefix indicating the existence of something
    유의미 (有意味) ― yuuimi ― meaningful
    유자격 (有資格) ― yujagyeok ― qualified (lit. having qualifications)

#### Derived terms

* 유(有)하다 (yuhada)
* See the hanja entry at 有 for Sino-Korean compounds of 유 (有, yu).

### Etymology 2

Sino-Korean word from 類, from the Middle Korean reading 류 (Yale: lyu).

#### Pronunciation

* (SK Standard/Seoul) IPA: [ju(ː)]
* Phonetic hangul: [유(ː)]
** Though still prescribed in Standard Korean, most speakers in both Koreas no longer distinguish vowel length.

#### Noun

유 • (yu) (hanja 類)
* Alternative form of 류(類) (ryu, “type; kind; sort”).
* (biology, taxonomy) a family or genus

##### Usage notes

The prescriptive South Korean standard demands the pronunciation 유 (yu) for this character when used as a noun, but 류 (ryu) is by far the more common—the number of Google search results preliminarily suggest that 류 (ryu) is about ten times more frequent than 유 (yu). South Korean legal documents also regularly use the "incorrect" 류 (ryu). In North Korea, only 류 (ryu) is accepted.

##### Derived terms

* See the hanja entry at 類 for Sino-Korean compounds of 유 (類, yu).

##### Related terms

* 류(類) (ryu, “type; category”)

### Etymology 3

Borrowed from English u.

#### Pronunciation

* (SK Standard/Seoul) IPA: [ju]
* Phonetic hangul: [유]

#### Noun

유 • (yu)
* The name of the Latin-script letter U/u.

##### Coordinate terms

* Latin script letter names: 에이 (ei) · 비 (bi) · 씨 (ssi) · 디 (di) · 이 (i) · 에프 (epeu) · 쥐 (jwi) · 에이치 (eichi) · 아이 (ai) · 제이 (jei) · 케이 (kei) · 엘 (el) · 엠 (em) · 엔 (en) · 오 (o) · 피 (pi) · 큐 (kyu) · 알 (al) · 에스 (eseu) · 티 (ti) · 유 (yu) · 브이 (beu'i) · 더블유 (deobeuryu) · 엑스 (ekseu) · 와이 (wai) · 제드 (jedeu)/지 (ji)

### Etymology 4

Korean reading of various Chinese characters.

#### Syllable

유 • (yu)
* 由:
    (MC reading: 由 (MC yuw))
* 油:
    (MC reading: 油 (MC yuw|yuwH))
* 酉:
    (MC reading: 酉 (MC yuwX))
* 有:
    (MC reading: 有 (MC hjuwX))
* 猶:
    (MC reading: 猶 (MC yuw|yuwH))
* 唯:
    (MC reading: 唯 (MC ywij|ywijX))
* 遊:
    (MC reading: 遊 (MC yuw))
* 遺:
    (MC reading: 遺 (MC ywij|ywijH))
* 幼:
    (MC reading: 幼 (MC 'jiwH))
* 幽:
    (MC reading: 幽 (MC 'jiw))
* 惟:
    (MC reading: 惟 (MC ywij))
* 維:
    (MC reading: 維 (MC ywij))
* 裕:
    (MC reading: 裕 (MC yuH))
* 誘:
    (MC reading: 誘 (MC yuwX))
* 愈:
    (MC reading: 愈 (MC yuX))
* 悠:
    (MC reading: 悠 (MC yuw))
* 喩:
    (MC reading: 喩 (MC jɨo$^H$))
* 兪:
    (MC reading: 兪 (MC jɨo))
* 游:
    (MC reading: 游 (MC yuw))
* 諭:
    (MC reading: 諭 (MC yuH))
* 柔:
    (MC reading: 柔 (MC nyuw))
* 乳:
    (MC reading: 乳 (MC nyuX))
* 儒:
    (MC reading: 儒 (MC nyu))
* 柳:
    (MC reading: 柳 (MC ljuwX))
* 留:
    (MC reading: 留 (MC ljuw|ljuwH))
* 流:
    (MC reading: 流 (MC ljuw))
* 類:
    (MC reading: 類 (MC lwijH))
* 琉:
    (MC reading: 琉 (MC ljuw))
* 劉:
    (MC reading: 劉 (MC ljuw))
* 硫:
    (MC reading: 硫 (MC ljuw))
* 紐:
    (MC reading: 紐 (MC nrjuwX))
* 鈕:
    (MC reading: 鈕 (MC nrjuwX))
* 杻:
    (MC reading: 杻 (MC nrjuwX))