Rejections rhymes with:
injections, interjections, objection's, objections, projections, affections, collections, complexions, confections, connections, corrections, defections, directions, dissections, election's, elections, erections, imperfections, infections, inflections, injections, inspections, interconnections, interjections, intersections, objection's, objections, predilections, projections, protections, recollections, reflections, section's, sections, selections
Rejections sounds like:
reacting, reactions, recasting, receding, recitations, reciting, rejecting, requesting, reseting, residence, residences, residencies, residency, residing, resistance, resistence, resisting, restating, resting, resuscitating, ricocheting, rightness, rightwing, roasting, rocketing, rostenkowski, rostenkowski's, rusting