Treasure rhymes with:
displeasure, leasure, leisure, measure, pleasure, arbitrager, arbitrageur, azure, closure, colclasure, composure, countermeasure, crozier, disclosure, displeasure, enclosure, exposure, foreclosure, fraiser, fraizer, frasier, frasure, frazier, hoosier, inclosure, lasure, leasure, leisure, losure, massager, measure, mosher, mosier, overexposure, pleasure, seizure
Treasure sounds like:
tercero, theatergoer, thrasher, thresher, tracer, tracker, tracor, traeger, trager, trageser, trauger, treachery, treasurer, treasury, trecker, tregre, trickery, trickier, trigger, troeger, trouser, trucker