Sensible VS sensitive: Sensitivity is the degree of response of a receiver or an instrument to an incoming signal. Sensibility is the ability to feel or perceive.
Ex: A sensitive person may be easily offended by an off-color joke, but without sensibility, that same person may be quite unsympathetic to the sufferings of war victims in Iraq.
Taxonomy: a classification of organisms into groups based on similarities of structure or origin, can be nowadays used in different field as sciences of communication etc.
In french: http://wiki.univ-paris5.fr/wiki/Taxinomie