Synonyms for Characterization (same or very similar meaning)
WordNet sense 1 (a graphic or vivid verbal description):
delineation, depiction, picture, characterisation, word-painting, word pictureWordNet sense 2 (acting the part of a character on stage; dramatically representing the character by speech and action and gesture):
enactment, portrayal, personationFrom the ODE community, based on WordNetadd/edit