Absence rhymes with:
acquiescence, adolescence, beneficence, coalescence, convalescence, essence, evanescence, innocence, licence, license, luminescence, nuisance, obsolescence, phosphorescence, plaisance, quintessence, reconnaissance, reminiscence, reticence, senescence
Absence sounds like:
abkhazians, absences, abusing, affixing, afghani's, afghanis, afghans, afsane's, appeasing