[{"Bold_text": "noun", "List Items": ["a word that serves as a key, as to the meaning of another word, a sentence, passage, or the like.", "a word used to encipher or decipher a cryptogram, as a pattern for a transposition procedure or the basis for a complex substitution.", "Also called catchword .Library Science.a significant or memorable word or term in the title, abstract, or text of a document or other item being indexed, used as the index entry.", "Digital Technology.a word used to classify or digital content, or to facilitate an online search for information:Search the database for the keyword “Ireland.”"]}]