The term 'COUNTRY ADDR.' is an abbreviation for a country address, which is a type of address used to identify a location in a rural area. The acronym is made up of four parts: REV (3 letters), TEL (3 letters), RFD (3 letters), and RTE (3 letters). REV stands for 'Rural Estate Village, ' TEL stands for 'Telephone Exchange, ' RFD stands for 'Rural Free Delivery, ' and RTE stands for 'ROUTE.' Together, these four components form a complete country address.