This paper gives the results of a controlled experiment on word association. The purpose was to establish norms of commonality of primary descriptive adjective responses to common nouns. The stimuli consisted of 203 common nouns selected from 10 everyday topics of conversation, approximately 20 from each topic. There were 350 subjects, 50% male, 50% female, selected from various regions in the United States and stratified into three age groups: 15-22, 51-65, and 66 and older. The norms of commality were established by counting every identical repetition of noun-adjective pairs. Two tables give: (1) the index of common nouns used as stimuli in the experiment; and (2) the norms of descriptive adjective responses to common nouns, including the number of repetitions for each adjective. The identical response pairs with the largest numbers, such as 170 for winter--cold and 107 for circle--round, are considered of significant interest. (TL)