Outweighs rhymes with:
freightways, gateway's, gateways, airway's, airways, airways', alleyways, always, anyways, aways, broadway's, brockway's, byways, callaway's, cashways, castaways, causeways, doorways, driveways, edgeways, elway's, fairways, folkways, foodways, freeways, freightways, galloways, gateway's, gateways, getaways, giveaways, hallways, hathaway's, hemingway's, highway's, highways, leaseway's, lengthways, midway's, norway's, pathways, railway's, railways, roadways, runaways, runways, safeway's, sideways, stairways, steinway's, strangwayes, subways, superhighways, trailways, trailways', uruguay's, usairways, walkways, waterways
Outweighs sounds like:
oates, oaths, oatis, oats, odaiko, oddities, odds, odes, odessa, odetics, odious, odysseus, odyssey, odyssey's, otis, otsego, otsuka, ottawa's, ottaway's, otto's, otts, out's, outage, outages, outdoes, outgo, outguess, outguesses, outhouse, outhouses, outs, outsize, outtake, outtakes, outweigh, outwits, owades