Audacity rhymes with:
capacity, incapacity, opacity, overcapacity, voracity, analyticity, animosity, atrocity, biodiversity, capacity, complexity, complicity, curiosity, density, diversity, domesticity, eccentricity, elasticity, electricity, falsity, felicity, ferocity, generosity, incapacity, intensity, laxity, monstrosity, necessity, obesity, opacity, overcapacity, paucity, perplexity, perversity, publicity, religiosity, simplicity, specificity, toxicity, university, velocity, viscosity, voracity
Audacity sounds like:
addict, addicted, adduct, addwest, adequate, adjust, adjusted, adsit, atheist, attached, attacked, attest, attested