Here's what rhymes with ssi.
he she see c sea v ve e ie ii thee fee si z vii sie xi xii xiii ci ee hee hie hae shi shih thi ze fea fie sae sci shee xy zi be we me t de three d free p pp b key di g tea ye knee ne ac bee li mi te dc flee je ni ti wee fc fhe ki lee nee pea ri ry ski tc tee wi wie xxi xxii xxiii bc dd dy flea gi ji lea mea mee ny quay sv whieh xxxi yi bb chih dee gee ghee lhe lii nae nie pee qi rhe rny tiie tke xxxii xxxiii saree whee tree pre qui cc plea tlie xvi xvii cd glee lessee gli kb pc sd sibi xxvi xxvii alii pari prix quis spree tv xxxvi xxxvii scree settee bursae suttee twee emcee epee brie sirree agree esprit exp foresee db oversee pg referee rupee tp bailee bt donee dp ftp jt pd pensee tb vendee amphorae goatee oversea queerly tepee banshee prithee ranee wormy artsy aurorae fusee gutsy quinsy teepee honoree sudsy topee whoopee florae footsie puttee soignee tootsie yippee degree decree http mit trustee debris devotee marquis addressee assignee trainee apogee appellee marquee bowsprit undersea abscissae curie honeybee parolee escapee invitee conferee draftee kedgeree sultrier shoetree nobody disagree nominee absentee grantee jubilee licensee quelque appointee legatee repartee filigree retiree detainee manatee potpourri attendee internee monody returnee wannabe dungaree enlistee maharanee paltrier wannabee wintrier guarantee bourgeoisie mortgagee guaranty interviewee phonology consignee diastole hyperbole transferee tympani franchisee amputee timpani calliope colossally deportee jamboree abductee inductee guarani whiffletree bumblebee axletree chiropody singletree whippletree idiosyncrasy