Intended to promote mutual understanding and communication between Colombia and the United States, this lexicon shows how the two countries differ in their perceptions and evaluations of dominant themes and issues. The associative group analysis method was used in the study. One hundred American and 100 Colombian undergraduate students were instructed to list 15 important domains of life and then to write as many associative responses as possible to each of the items on their list. The high frequency responses from each group served as the basis for selecting the 120 stimulus themes used in the main data collection phase. The students' spontaneous free associations responses to these themes were then analyzed. Comparative findings, with the use of semantographs and text, are reported for the following areas: international relations and education, family and self, friendship and understanding, community and society, love and sex, religion and morality, health and well-being, education and upbringing, and economy and money. The general findings show that on certain psychocultural variables, such as perceptions, meanings, and value orientations, the intrasocietal/intracultural variations are distinctly smaller than variations between cultures. (RM)