Facet- is a subset of a GIS database that contains information about one subarea of the overall digital map. Facets are an effective way of dividing a continuous map into units which can be easily created, edited, and analyzed. The terms facet and tile are synonymous and are, in some ways, the opposite of a continuous map.
Falls are slope movements on steep slope where a discrete mass of each material, regardless of size, is detached and moves downslope by traveling through the air, bouncing, or rolling.
Reference : Mathewson, AN INTRODUCTION TO ENGINEERING GEOLOGY, 1981
A fault, in animal breeding, is a characteristic whose state or quality falls outside of the acceptable range for the attribute being judged. This article discusses faults in dogs. (See Conformation point for a list of some of the more common areas in which faults can occur.)