Colonials rhymes with:
colonial's, colonial's, colonial's, colonial's, testimonials, centennial's, colonial's, perennials, testimonials, advertorials, aerials, biomaterials, burials, centennial's, cereals, colonial's, editorial's, editorials, extraterrestrials, gabriel's, imperial's, industrial's, industrials, industrials', materials, materials', memorials, perennials, radials, serials, testimonials, tutorials
Colonials sounds like:
colonel's, colonels, colonial's