version 1International audienceIn this paper, I propose to give a sociocognitive answer to a question raised by the semantic externalism hypothesis, which I sum up as follows : where is meaning ? This question gives rise to others : is human linguistic activity localized somewhere ? and if it is so case : is linguistics itself localized somewhere, i.e. closed into disciplinary boundaries, and do linguists have to consider linguistic phenonemons only by means of linguistic tools only, or may they use non linguistic theories and instruments ? In other words, is linguistic science only a linguistic practice ? I will first show that the externalist hypothesis in linguistic science is not a recent one, by describing theories of meaning which may...