aarp aaron's rod • Aaru · · · Info · Definitions · Characters · · aarp · · Text Latin · · Script 4 · · Length 2 · · Syllables Definitions · · · (noun) an association of people to promote the welfare of senior citizens. Synonyms: Association for the Advancement of Retired Persons, AARP. · · Noun Definition 1 Characters · · a latin small letter a U+0061 p latin small letter p U+0070 r latin small letter r U+0072