Invitees rhymes with:
abductees, absentees, adoptees, amputees, appointees, deportees, devotees, draftees, enlistees, expertise, guarantee's, guarantees, guaranties, guaranty's, inductees, maltese, ortiz, scortese, stees, t's, t.'s, t.s, teas, tease, tees, trustee's, trustees, trustees', tt's
Invitees sounds like:
imbeds, impedes, impetuous, impetus, infatuates, infotech, inhabits, inhibits, innovates, inputs, invades, invidious, invites