Showtime rhymes with:
airtime, alltime, anytime, bedtime, centime, christmastime, daytime, dinnertime, downtime, everytime, flextime, fulltime, funtime, halftime, lifetime, longtime, lunchtime, maritime, mealtime, meantime, movietime, nighttime, noontime, overtime, parttime, pastime, peacetime, primetime, quicktime, ragtime, schooltime, sometime, springtime, summertime, wartime, wintertime
Showtime sounds like:
saddam, sadden, saidan, saitama, saskatoon, satan, satin, sawdon, saxton, scadden, scatena, schaden, schechtman, schettino, schouten, schuitema, scicchitano, scotten, scotton, scouten, scowden, scythian, sdn, seaton, section, sedam, sedan, sedano, sedation, seddon, sedition, sedona, sedum, seetin, seeton, seiden, seidman, seitman, seton, settanni, sexton, shadden, shadoan, shakedown, shasteen, shatman, shedden, sheikdom, shootdown, shootin', showdown, shutdown, sidden, sideman, sidman, sidney, sidon, sidonia, sistine, sittin', sitton, situation, sixteen, sjodin, skadden, skydome, sodano, sodden, soden, sodium, sodom, sodomy, southam, southdown, southin, sowden, stadium, stain, stam, stamey, stamina, stamm, stammen, stan, stanaway, stann, stannie, stano, stanway, staten, statham, statin, station, staton, stattin, statton, statum, stayton, steadham, steadman, steam, steamy, stedman, steedman, steen, steeton, stehman, steidtmann, steiman, stein, steinem, steinman, steinmann, steinway, stem, stemen, stemm, sten, stena, stene, steno, steny, stethem, stidham, stine, stineman, stone, stoneham, stoneman, stoney, stony, studeman, stum, stumm, stun, stymie, styne, suction, sudan, sudano, suddam, sudden, sugden, suggestion, sustain, sutton, suydam, sweatin', sweatman, sweden, sweeden, sweeten, sweetman, sweeton, swetnam, sydney, system, systemone