色いろ上じょうMeanings1nouncolored wood-free paperabbreviationAbbreviation of 色上質紙 (iro jōshitsu-shi). Industry term for colored wood-free paper, commonly used in printing and stationery.See also: 色上質紙このカタログの表ひょう紙しには色いろ上じょうを使つかっています。We use colored wood-free paper for the cover of this catalog.