The Organization of American States (OAS) is a regional organization comprised of 35 member states in the Americas. The crossword solutions for OAS MEMBER are PERU (4 letters), URU (3 letters), BOL (3 letters), CHILE (5 letters), ARG (3 letters), MEX (3 letters), USA (3 letters), and ECUA (4 letters). These countries are all members of the OAS, representing the diverse nations of the Americas.