sikʼis

Noun

 * 1) my older brother, my older sister (of the same sex as me)
 * 2) my older maternal cousin (of the same sex as me)
 * 3) my friend (chiefly of the same sex as me)

Usage notes
The 1st-person singular possessive has rather than  because of coronal harmony: [sh] in  assimilates to [s] because of the alveolar sibilant ([s]) in the root, -kʼis. It is a very common error among younger Navajo speakers who do not know the language well to use  in all cases, because they often do not know of this feature.