Underwrite rhymes with:
albright, allbright, argabright, arkwright, birthright, boatright, boatwright, cartwright, conkright, copyright, copywrite, courtright, courtwright, cronkright, curtright, cutright, displaywrite, downright, drumright, drumwright, femrite, fluorite, fulbright, fullbright, gathright, hambright, housewright, jinright, lambright, malrite, meteorite, playwright, plowright, rubright, seabright, seawright, shipwright, wainright, wainwright, waybright, wegbreit, wheelwright, woolbright
Underwrite sounds like:
underrate, underrated, undertow, underwood, underwrote, undeterred, unhindered, unitrode, untoward, untreated, untried, untruth