Yup, some have plurals, some don't. For example, the plural of
Sinhalese is Sinhalese itself!
On 20/08/2011, Ingvild Roald <[log in to unmask]> wrote:
> Hm. We are known as "Norwegians", and people from the USA as "Americans",
> are they not? But maybe "the Deaf" will do, in the definite sense. Or Deaf
> students, Deaf people, Deaf persons and so on. Thanks.
> Date: Sat, 20 Aug 2011 10:56:21 +0200