In phenomenology, noesis is an act of consciousness. "Thinking", "loving", "hating", "imagining" are all verbs applying to what minds do. One would never call "loving" a belief, because it is something you do, not something you merely hold to be true.
Noesis is also:
The name of the Thessaloniki Science Center & Technology Museum, http://www.noesis.edu.grGreece.
The name of a Philadelphia-area rapper and the front man for the band, Philadelphia Slickhttp://www.philadelphiaslick.com.