The term alas may refer to— an interjection used to express regret, sorrow, or grief. in geomorphology, a steep-sided depression formed by the melting of permafrost; it may contain a lake. in zoology, a wing or winglike body part.Alas , a subdistrict of the district Manufahi in East Timor.Alas people, an ethnic group in Aceh, Indonesia.Alas!, a work of literature by Rhoda Broughton.AlAs, aluminium arsenideALAS, a small