Al-Khaass ni lafdhi ambalo limewekwa au kutumika kuonyesha fard (kipengele) kimoja kinachohusiana na mtu, au fard kimoja kinachohusiana na aina (naw'u), au kundi la afraad ambao wamewekewa mipaka au kuainishwa (yaani, wamebainishwa).

Al-Khaass is the Lafzh that has been provided or utilised to indicate to a single Fard (element) related to the person, or a single Fard related to the kind (Naw’u) or to a number of Afraad which are restricted or limited (i.e. specified).

Kwa hiyo ina aina tatu:

It therefore has three types:

Khaass Shakhsiy (mtu maalum) kama nomino ambazo ni majina kama: Zaid, Muhammad na Baghdaad.

- Khaass Shakhsiy (specific person) like the nouns which are names like: Zaid, Muhammad and Baghdaad.