Dictionary 1. (v. t.) To write or insert between lines already written or printed, as for correction or addition; to write or print something between the lines of; as, to interline a page or a book.2. (v. t.) To arrange in alternate lines; as, to interline Latin and English. 3. (v. t.) To mark or imprint with lines. Thesaurus bonnet cap coif cork crown dome face feather fill fur hat hood inlay interline line load pack pad roof roof in stopper stuff tip top wad wainscot |