Interoffice rhymes with:
office, adolphus, amorphous, beilfuss, cephus, delfosse, dreyfus, dreyfuss, duffus, edifice, ifas, jeffus, josephus, memphis, office, orifice, preface, resurface, rothfuss, rufus, searfoss, snafus, stoltzfus, subsurface, surface, typhus, ziegenfuss
Interoffice sounds like:
interface, interfaces, interfax, interpose, interviewees, interviews, intervoice