Incase rhymes with:
encase, caisse, case, cayce, encase, worst-case, ace, apace, arianespace, base, brace, caisse, case, cayce, chace, chase, crace, dace, debase, deface, disgrace, displace, drace, efface, embrace, encase, erase, face, frace, glace, grace, heyse, interlace, jonbenet's, lace, left-brace, mace, misplace, nace, pace, place, race, rais, replace, retrace, right-brace, space, trace, vase, wace, worst-case
Incase sounds like:
iams, iannamico, iannucci, iannuzzi, iiams, image, images, imasco, imax, imax', imax's, imes, imig, immanence, immense, imminence, immunex, immunize, immunizes, imus, in's, inaez, inaki, inc, inc., inc.'s, inca, incas, ince, inch, inches, inches', incise, inco, inco's, ines, inez, ing, inga, inge, ingo, inhouse, iniga, iniguez, iniki, iniss, ink, inks, inky, inmac, inman's, inmex, inn's, innes, inness, inning, innings, innis, inniss, innocuous, inns, inns', ins, inscho, insco, inscoe, insko, iomega, ionic, ionics, ionics's, ionize, ions, iowans, iwanicki, iwanski, iwinski