A sample of two hundred and seventy-seven nouns was scaled for definability and pronunciability. Intercorrelations were computed among the following variables: definability, pronunciability, imagery, concreteness, associative meaningfulness, familiarity, and Thorndike-Lorge frequencies. The pattern of correlations bears out Paivio's distinction between higher order and lower order meaning. Two experiments were conducted to test the relationship between the word attributes and recall of word labels with dictionary definitions provided as retrieval cues. The positive effect of definability on label retrieval was independent of the imagery values of the defined words, but the effectiveness of imagery on retrieval was dependent on word definability.