Iranun language

The Iranun language (Jawi: إيراناونساي), also known as Iranon or Illanun, is an Austronesian language belonging to the Danao languages spoken in the provinces of Maguindanao del Norte and other part of Lanao del Sur and Lanao del Norte, coastal municipalities of Zamboanga del Sur from Tukuran to Dumalinao and Cotabato in southern Philippines and the Malaysian state of Sabah. It is the second most spoken language in Maguindanao after the Maguindanao language.

Distribution
Iranun is spoken in the following areas:
 * Maguindanao del Norte: Barira, Buldon, Parang, Matanog, Sultan Mastura, and Sultan Kudarat
 * Cotabato: Alamada, Banisilan, Carmen, Libungan, and Pigcawayan
 * Lanao del Norte: Sultan Naga Dimaporo, Kauswagan and Kolambugan
 * Lanao del Sur: Kapatagan, Balabagan, Malabang, Bumbaran, Wao, and Picong
 * Bukidnon: Kalilangan
 * Zamboanga del Sur: Pagadian, San Pablo, Dumalinao, Dimataling and Tukuran
 * Sabah, Malaysia: Kota Belud, Lahad Datu, and Kota Kinabalu.

Vowels
Sounds /i, u, a/ can also have allophones of [ɪ, e], [o], [ʌ], among speakers.