Here's what rhymes with functioing.
showing sewing sowing hoeing shoeing going growing knowing flowing throwing glowing bowing rowing slowing towing crowing lowing snowing stowing toeing blowing unknowing kowtowing meowing snowshoeing foregoing undergoing bestowing easygoing forgoing oceangoing ingrowing foreknowing overflowing overthrowing Words that almost rhyme with functioing
voting hoping soaking zoning foaming homing honing phoning holing shoaling hosing soaping foaling holding closing clothing floating loading rolling smoking coating coding coping noting folding quoting sloping choking cloning coaching groping joking polling posing boating bowling combing dosing evoking groaning growling hosting loathing moaning poking roaming roving coking croaking dozing poaching tolling doting gloating goading loafing loaning nosing roping stoning toning toting boding cloaking doling gloaming moping poling scoping stoking yoking boning doming grossing hoaxing joshing opposing encoding exposing supposing unfolding boasting devoting enclosing invoking molding moulding posting probing unloading coasting consoling encroaching roasting scolding stroking strolling atoning bolting coaxing engrossing eroding extolling inclosing jolting bloating cajoling droning moulting revoking scrolling toasting trolling unrolling broaching connoting disowning molting nonvoting rezoning unloving convoking ghosting offloading apposing emoting honeycombing paroling approaching controlling imposing composing denoting disposing provoking revolting upholding beholding decoding exploding foreboding ennobling enrolling overloading reposing bemoaning bowstring buttoning condoning deposing reloading enfolding foreclosing intoning logrolling nonsmoking purposing unbuttoning underclothing condoling disrobing imploding infolding overdosing refolding blazoning chaperoning cuckolding demoting misquoting unimposing promoting proposing withholding diagnosing disclosing patrolling postponing interposing reproaching telephoning wainscoting proroguing remolding remoulding superposing buttonholing overgrowing pawnbroking pigeonholing decomposing juxtaposing presupposing superimposing telescoping transposing recomposing predisposing