Auction's rhymes with:
abductions, abstractions, action's, actions, addictions, affections, afflictions, attractions, auctions, classactions, collections, complexions, concoctions, confections, conjunctions, connections, constrictions, constructions, contractions, contradictions, convictions, corrections, deductions, defections, depictions, directions, dissections, distinctions, distractions, dysfunctions, election's, elections, erections, evictions, exactions, extinctions, extractions, factions, fictions, fractions, frictions, functions, imperfections, infections, inflections, infractions, injections, injunctions, inspections, instructions, interactions, interconnections, interjections, intersections, introductions, jurisdictions, malfunctions, objection's, objections, obstructions, predictions, predilections, production's, productions, productions', projections, protections, reactions, recollections, reconstructions, reductions, reflections, rejections, reproductions, restrictions, sanction's, sanctions, sanctions', satisfactions, section's, sections, selections, transaction's, transactions
Auction's sounds like:
academic, academics, academies, academy's, acceding, accosting, accusations, acquisition's, acquisitions, acquitting, acting, actinomycosis, action's, actions, acuteness, agitating, ashton's, assistance, assisting, associating, association's, associations, astonish, astuteness, auctioning, auctions, augustinians, augustyniak, austen's, austin's