plu·ral·ize \ˈplu̇rəˌlīz, ˈplür-\verb (-ed/-ing/-s) Usage: see -ize Etymology: International Scientific Vocabulary plural (I) + -ize transitive verb : to make plural by using a plural form : attribute plurality to intransitive verb : to take a plural : assume a plural form • plu·ral·iz·er\-zə(r)\noun-s