Headquarter rhymes with:
hindquarter, hindquarter, hindquarter, airporter, hindquarter, airporter, arter, barter, carter, charter, corter, courter, darter, exporter, fourthquarter, garter, gorter, harter, hartter, hindquarter, horter, importer, karter, marter, martyr, mcartor, mccarter, mcwhorter, mortar, morter, nonstarter, porter, quarter, reporter, sartor, shorter, smarter, snorter, sorter, sortor, starter, supporter, tartar, tarter, thirdquarter, transporter, vanmarter