Gigabytes rhymes with:
megabytes, jacobites, megabytes, jacobites, kilobytes, megabytes, snakebites, soundbites, acolytes, albright's, ammonites, apartheid's, apatites, appetites, backlights, birthrights, campsite, campsites, clintonites, copyrights, daylights, dogfights, dolomite's, dolomites, extradites, fahrenheit's, firefights, flashlights, floodlights, footlights, fortnights, goodnights, gunfights, hampshirites, headlights, highlights, hindsight's, insights, israelites, jacobites, kilobytes, laterites, luddites, lymphocytes, malrite's, megabytes, mennonites, muscovites, naderites, neophytes, new-hampshirites, overflights, parasites, phagocytes, phosphorites, playwright's, playwrights, reaganites, satellite's, satellites, searchlights, shiites, shipwrights, skylights, skylites, snakebites, socialites, soundbites, sporophytes, spotlights, sticktights, stoplights, suburbanites, sulfites, underwrites, uprights, urbanites