K'oh-nar was a Vulcan term for the "feeling of being completely exposed", corresponding to embarrassment before the object of one's affections. It was a symptom of shon-ha'lock, a form of intense emotional attraction.

In 2373, Tuvok observed that Harry Kim showed k'oh-nar at the arrival of Marayna, then believed to be a hologram. (VOY: "Alter Ego")