PURPOSE: To judge which words would be more appropriate socially and/or linguistically for a phonological evaluation instrument for Brazilian Portuguese children. CASE REPORT: From an initial list of 722 words from the lexicons of child and phonological assessments currently in use, 11 expert judges-3 clinical speech therapists, 5 doctors in speech therapy, and 3 doctors in linguistics-judged the best words to comprise an instrument based on theoretical and practical knowledge. From these results, a kappa agreement was calculated between the groups of expert judges and a new list of words was created with the most suitable words. Analysis of expert judges had a weak agreement with kappa value equivalent to 0.378, resulting in 316 selected words. These were illustrated and analyzed by specialists as judges not to familiarity and proper elicitation through the Likert scale. The judges were 72 male and female children from public or private schools. They were aged between 3.0 and 8.11 years. The trial judges who were not experts produced a list of words to comprise the most appropriate assessment. They rated the word by familiarity and the naming of an illustration. Words with the highest number of correct names were re-analyzed as theoretical linguistics. Another list of words was created with 116 words that were considered the best words to make a child phonological assessment instrument. CONCLUSION: The sample for the analysis of the judges' 116 words with illustrations comprise the phonological assessment tool.