Since the advent of the computer age, terminology has been managed with the use of databases, which contain term denominations and other information, but do not work with concepts. In the last decade, some projects have been organizing terms in the form of ontologies, using methods similar to those used by computer experts. Nevertheless, this approach may give rise to some problems, and does not solve those that already exist when working with concepts. Therefore, we propose an alternative way to deal with concepts in ontologies.