Here's what rhymes with efficiencying.
sighing vying shying dying lying buying flying frying tying dyeing spying undying fancying trying applying crying drying supplying specifying ageing defying edifying plying prying verifying vivifying ossifying espying versifying underlying denying implying modifying relying terrifying overlying signifying unifying complying horrifying testifying certifying notifying falsifying mystifying nullifying pacifying stupefying acidifying belying ramifying typifying unedifying vilifying bandying deifying mollifying scarifying whinnying satisfying clarifying classifying justifying replying intensifying magnifying simplifying amplifying diversifying fortifying mortifying prophesying ratifying rectifying sanctifying decrying emulsifying solidifying stultifying calcifying codifying crucifying fructifying liquefying personifying dignifying petrifying revivifying speechifying identifying occupying gratifying qualifying purifying exemplifying glorifying quantifying unsatisfying beautifying electrifying indemnifying demystifying detoxifying dissatisfying stratifying multiplying disqualifying objectifying oversimplifying putrefying preoccupying Words that almost rhyme with efficiencying
fighting firing filing hiding shining citing hiring signing hiking siding sighting sizing siting fining viking seining writing finding rising arising mining riding smiling arriving dining guiding lighting lining sliding surviving timing assigning biting inviting liking typing advising confining diving piling piping thriving wiping wiring confiding inciting rhyming summarizing tiring untiring whining writhing pining righting slicing styling subsiding biding biking chiding hireling liming slighting sniping spiking summarising tithing unsmiling whiting dicing knifing knighting swiping tiding wining binding driving striking defining exciting surprising acquiring climbing combining deciding designing dividing exercising lightning striving winding abiding admiring deriving emphasizing inspiring pricing refining residing uprising analysing aspiring authorizing devising gliding obliging reciting reconciling revising reviving theorizing civilizing coinciding compiling conspiring enticing ionizing priming resigning splicing stifling striding synthesizing alighting aligning authorising bribing divining minding twining blighting conniving griping rifling theorising uninviting unwinding apprising enshrining exiling exorcising feminizing indicting unexciting eliding maligning opining priding prising prizing retyping unbinding providing analyzing comprising grinding presiding retiring trifling uniting blinding minimizing overriding supervising undermining ascribing expiring inclining rewriting socializing specializing subscribing underwriting baptizing beguiling colliding contriving delighting despising disguising disliking energizing igniting memorizing perspiring philosophizing sensitizing subsidizing sympathizing underlining visualizing chastising fantasizing immunizing inscribing paralysing repining subdividing systematizing uninspiring unsurprising atomizing capsizing deriding finalizing initializing mesmerizing overwriting pulverizing recombining satirizing sermonizing vaporizing amortizing anodizing bridling debiting empathizing entwining epitomizing itemizing mechanizing memorising moisturizing reassigning respiring sanitizing sensitising solemnizing televising tyrannizing urbanizing advertising describing declining organizing recognizing reminding sacrificing depriving enterprising maximizing oxidizing colonizing generalizing merchandising mobilizing modernizing optimizing reclining symbolizing fertilizing harmonizing jeopardizing legitimizing liberalizing moralizing paralyzing polarizing rationalizing redefining sterilizing synchronizing transcribing appetizing circumscribing customizing digitizing economizing evangelizing expediting formalizing galvanizing humanizing improvising intertwining nationalizing publicizing redesigning reuniting temporizing terrorizing aggrandizing familiarizing fraternizing hypothesizing nonbinding penalizing personalizing secularizing verbalizing vitalizing vocalizing appetising apprenticing baptising bestriding commercializing demonizing desensitizing disobliging faultfinding hypnotizing idolizing merchandizing mythologizing overemphasizing pasteurizing pressurizing realigning rebinding temporising unappetizing vulcanizing womanizing utilizing criticizing practising prescribing stabilizing neutralizing patronizing stereotyping apologizing categorizing centralizing crystallizing equalizing localizing magnetizing normalizing scrutinizing standardizing tantalizing antagonizing catalyzing depolarizing dramatizing externalizing homogenizing internalizing legalizing monopolizing revolutionizing stigmatizing disorganizing eulogizing hybridizing hydrolyzing immobilizing magnetising naturalizing politicizing privatizing proscribing anesthetizing carbonizing catalysing characterizing compromising capitalizing demoralizing destabilizing reorganizing actualizing decentralizing dehumanizing globalizing metabolizing popularizing proselytizing revitalizing brutalizing demagnetizing marginalizing proselytising romanticizing conceptualizing democratizing individualizing prioritizing materializing tranquilizing industrializing contextualizing