Reauthorizing rhymes with:
authorizing, authorizing, authorizing, categorizing, characterizing, circularizing, colorizing, computerizing, demilitarizing, depressurizing, memorizing, mesmerizing, mischaracterizing, pasteurizing, polarizing, popularizing, pressurizing, satirizing, summarizing, temporizing, terrorizing, theorizing
Reauthorizing sounds like:
redressing, retracing, rhetoricians