Alternate Names: Iou
Dialects: Bona Bona, Bonarua, Dahuni, Lausaha (Daui, Fife Bay), Leileiafa, Sinaki (Gadaisu, Gaidasu), Suau.
Status Notes: A lingua franca around the south-eastern tip of Papua New Guinea.
Genealogy:
Demographics: 6,800 (Wurm and Hattori 1981). 680 monolinguals. L2 users: 14,000.
Language Use: Sinaki dialect speakers also use Buhutu [bxh]. Used as L2 by Bauwaki [bwk], Binahari [bxz], Buhutu [bxh], Bwanabwana [tte], Domu [dof], Haigwai [hgw], Magori [zgr], Maiwala [mum], Morawa [mze], Saliba [sbe], Tawala [tbo], Wagawaga [wgb], Yaleba [ylb].
Language Development: Literacy rate in L2: high. NT: 1956–1962.
Writing System: Latin
Nation of Origin: Papua New Guinea