concreteness norms were collected for 909 words using a seven point judgment scale, where each extremity highly represented the abstract or concrete levels, respectively. results showed a bi-modal distribution suggesting that words may be classified either as concrete or abstract. the average reliability of the norms was r=0.97. concreteness judgments were not influenced by sex, age, word written frequency or category size. the results indicate that concreteness may be considered as an independent word attribute.