Here's what rhymes with ffous.
aureus ous prowess leprous Words that almost rhyme with ffous
loudmouth foulness outface owlets doubtless allowance countess soundness loudness bounteous soundless stoutness brownness countless boundless cloudless roundness thousandths devoutness roundups groundless unsoundness viscountess accountants endowments groundnuts mountebanks profoundness announcements denouncements pronouncements