dueller •areola, rubeola •Viola •dueller (US dueler), jeweller (US jeweler) •babbler, dabbler, parabola •labeller (US labeler) •dribbler, nibbler, quibbler, scribbler •libeller (US libeler) •hobbler, nobbler, squabbler, wobbler •bubbler •fumbler, mumbler, rumbler •burbler, hyperbola •bachelor •paddler, straddler •mandala • panhandler • meddler •ladler • wheedler •diddler, piddler, riddler, tiddler, twiddler •coddler, modeller (US modeler), toddler, twaddler, waddler •fondler, gondola •yodeller (US yodeler) •doodler •muddler, puddler •hurdler • waffler •shuffler, snuffler •haggler, straggler •mangler, wangler •finagler •giggler, wiggler, wriggler •smuggler, struggler •pergola • heckler •Agricola, Nicola, pickler, tickler, tricolour (US tricolor) •chronicler •snorkeller (US snorkeler) •chuckler •enameller (US enameler) •signaller (US signaler) •tunneller (US tunneler) •grappler • stapler •stippler, tippler •Coppola •gospeller (US gospeler) •cupola •caroller (US caroler) •Kerala •quarreller (US quarreler) •chancellor •penciller (US penciler) •whistler •battler, prattler, rattler, tattler •dismantler • startler •fettler, settler, settlor •belittler, victualler (US victualer) •hospitaller (US hospitaler) •bottler, throttler •hosteller (US hosteler) •caviller (US caviler), traveller (US traveler) •marveller (US marveler) •leveller (US leveler), reveller (US reveler) •driveller (US driveler), sniveller (US sniveler) •groveller (US groveler) •shoveler, shoveller •chiseller (US chiseler), sizzler •bamboozler, methuselah •guzzler