Mortar rhymes with:
morter, corter, courter, exporter, fourthquarter, gorter, horter, importer, mcwhorter, morter, porter, quarter, reporter, shorter, snorter, sorter, sortor, supporter, thirdquarter, transporter
Mortar sounds like:
marauder, marder, marter, martire, martyr, martyre, meridor, meritor, meriweather, meriwether, merriweather, merriwether, moratoria, mortara, morter, mortier, mortuary, muratore, murder, murderer