Digital Language Vitality | Central Okinawan

Central Okinawan (ryu)



English name Central Okinawan
Native name 沖縄口
SIL code ryu
Alternative names central, central group, central okinawan, central ryukyuan, kudaka, luchu, naha, okinawa, okinawan, okinawan south-central, ryukyuan, shuri, torishima, シマクトゥバ, 沖縄方言, 沖縄語
Speakers L1: 984,000 (ethnologue),
L1: 309,713 (aggregate),
L1: 984,285 (World Oral Literature Project” .),
L1: 95,000 (Number of Speakers of Central Okinawan” . Zachary Read (2011) JLect),
L1: 100,000 (personal communication on Japonic languages” . Thomas Dougherty (2014)),
L1: 984,000 (Ethnologue: Languages of the World, 16th Edition (2009)” . M. Paul Lewis · SIL Interna)
Country Japan
Region Eastern Asia
Champion N/A
ISO scope I
ISO type L
ISO active yes
Integrated code ryu_____________A
Last updated Feb. 1, 2017, 3:36 p.m.


EGIDS (Ethnologue) 7
In yes
Vitality (Kornai, 2013) dead

Language packs

Windows10 input method no
Mac input no
Ubuntu input no
Windows language pack no
Mac language pack no
Ubuntu language pack no
Firefox language pack no
Firefox dictionary no
Office language pack no
Office interface pack no


Has Wikipedia no
Has Wikipedia Incubator yes

NLP tools

Hunspell status
Hunspell coverage None
TreeTagger no

Open Language Archives Community

Primary texts online None
Primary texts all None
Lexical resources online 2
Lexical resources all 2
Language descriptions online 2
Language descriptions all 2
Language in online resource None
Language in any resource None
Online resource about the language 4
Any resource about the language 4


Source Crubadan
Number of documents 2
Number of words 438
Number of characters None
Has FLOSS spell checkers no
In Watchtower no
Has UDHR translation no

Indigenous Tweets project

Number of blogs None
Number of posts None
Number of words None
Number of users None
Number of tweets None

Swadesh lists

Has Swadesh 110 no
Has Swadesh 207 no

Other databases

Panlex translations 4
In WALS no
In Omniglot yes
On no
Uriel features 36
In Leipzig Corpora no
In SIREN project no