 Stevenson aims to clarify ethical language by using “tools” of analysis. One tool that Stevenson will not use to clarify ethical language is the tool of definition, at least in the sense of ‘definition’ that implies “finding synonym for synonym,” since he thinks that ethical terms, due to their emotive meanings, are indefinable in this sense (1944, 82). Rather, Stevenson’s analytic tool of choice is a set of models. The models highlight the respective dispositional elements (i.e. elements of meaning) of ethical language that, via its use, are to varying degrees in linguistic play (1944, chapters II, IV, and IX; see esp. 82–83; for discussion, see also Urmson 1968, chapters 4 and 6).