This seminar will focus on certain problems in linguistics and terminology issues which enable a fresh look at a number of key concepts used in linguistics, such as those of sign, categorization, concept, competence, denotation, and connotation. Particular emphasis will be placed on the interest that there may be to analyze, in a terminological framework, metaphors and figures of speech. This doctoral seminar proposes supervised student activities on research projects identified on an individual or small group basis.