paperboard From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA thick paper, or thin cardboard. Related wordsSynonymsposterboardcardboardcartonboardboxfibreboardsackpaperjacketbunchbadgeinsethitshotcardapplicationsAssociatedbleachedclamshellcorrugatedwaxedpackaginglaminatedpvcpulphoneycombfolderRhymesaccordlordoverlordabhorreduntowardhorderewardsoaredimploredchord References Wiktionary — paperboard Wikipedia — paperboard