The paper discusses whether easy-to-read (ETR) German can be classified as a ‘variety’ and/or a ‘register’. It appears to be very difficult to capture the variational status of ETR German within the system of language variation due to its rather artificial, rule-based character. On the other hand, the question of whether the notion of variety or register, or any other notion modelling language variation, is suitable for the linguistic classification of ETR German very much depends on how these notions are defined. Thus the article reveals general difficulties in capturing the functioning of language variation with clear-cut definitions and concepts due to the dynamics and complexity of language variation as such. Nevertheless, the explanatory frameworks of concepts such as variety and register prove to be useful for describing the special variational status of ETR German.
