Gabbro rhymes with:
calabro, albro, bilbro, calabro, chesbro, chesebro, cibro, culbro, dimambro, disbro, fambro, gambro, hambro, hasbro, kimbro, lambro, phibro, scarbro, walbro, yarbro, ziobro, zumbro
Gabbro sounds like:
gabeira, gaber, gabor, gaboury, gasbarro, gaspar, gaspara, gaspari, gasparro, gasper, gauvreau, gaver, gaviria, gebauer, geffre, geoffrey, geoffroy, ghafar, giefer, gipper, giuffre, giver, gober, gooseberry, gopher, gossiper, gover, govier, guayabera, guber, guevara, guiffre, gvaryahu