Children and adults were taught the same novel word (torubi in the puppet's language) to two objects (dog1 and cat1) and then they were required to select the objects that they thought the "dogs" (or "cats") and the "torubi" from the six probe objects (dog1, dog2, cat1, cat2, a pencil, and an umbrella). After that the subjects were taught the novel word three times and then required to select the probe objects again. Based on the selection patterns, the mutual exclusivity and the hierarchical organization were found in the subordinate and the basic levels. Almost all children were identified as the subordinate-exclusive, the subordinate hierarchical, and the basic-exclusive, while almost all adults as the subordinate-hierarchical and the basic-hierarchical. With teaching trials the subordinate-exclusive children decreased and the two hierarchical children increased, while the subordinate-hierarchical adults increased and the basic-hierarchical adults decreased. The findings were discussed with reference to the associations between each object in the subordinate level and the novel word, the associations between each of the basic names and the novel word, and the equivalence between the two basic categories which belong to the novel word (or animals).