Abstract: (Philosophical lexicography – a new concept. A few notes) We are trying to prove, in this paper, that philosophical lexicography is a new concept. Dictionaries of philosophical terms, published especially in the last two decades, in the Romanian space, have not benefited from an adequate reception. Some are limited to an unrepresentative period from the creation of an author. For a better understanding of the philosophical vision, which is specific to a certain thinker, a sequel of these dictionaries, targeting the entire work of the philosopher, would be welcome. The authors considered, so far, in these particular researches, were, in our country, Lucian Blaga, D. D. Roșca, Mircea Eliade and Emil Cioran. In France, for example, there have been, for some time, dictionaries of this type, related to the thinking of the great philosophers, not necessarily French. In the scheme of large-scale philosophical lexicography, it is included an impressive palette of universal systems of thought, from antiquity to the present day. Aristotle, Plato, Descartes, Schelling, Schopenhauer, Kant, Nietzsche, Spinoza, Heidegger, Foucault, Derrida and many others have their dictionaries. There are, in this regard, publishing houses that have created special collections. Thus, philosophical lexicography suggests ways to get acquainted with terminological nuclei, with those semantic, essential mechanisms of understanding a philosophy. It allows, among other things, if we refer to the European space, the comparison of concepts, types of lexicon, innovative approaches, in the wide field of knowledge, finding affinities or discrepancies between philosophical systems that marked the culture of humanity.