Treaty interpretation is one of the most crucial roles of international dispute settlement bodies. They can decide the case in the most reasonable way by legally justified interpretation of treaty. In some cases of the WTO and the ICJ, there exist certain types of facts which closely relate to the evolution of the meaning of a term. This research compares the four ICJ cases to the two WTO cases in order to ascertain both similarities and dissimilarities of those cases. Significant is the

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... larities concerning the related principle on the economic or environmental aspect enshrined in certain agreement. In the context of the WTO dispute settlement, the contemporary meaning could only be adoptable after adequately justifying treaty interpretation by means of the two-step semantic generic-related interpretative approach. Without the second step of principle-related analysis, problems may arise especially from the economic perspective.