[{"Bold_text": "noun", "List Items": ["the 16th letter of the Greek alphabet (?, ?).", "the consonant sound represented by this letter.", "Mathematics.the letter ?, used as the symbol for the ratio of the circumference of a circle to its diameter.the ratio itself: 3.141592+.", "the letter ?, used as the symbol for the ratio of the circumference of a circle to its diameter.", "the ratio itself: 3.141592+."]}, {"Bold_text": "noun", "List Items": ["printing types mixed together indiscriminately.", "any confused mixture; jumble."]}, {"Bold_text": "verb (used with object)", "List Items": ["to reduce (printing types) to a state of confusion.", "to jumble."]}, {"Bold_text": null, "List Items": ["Law.personal injury.", "principal investigator.", "Also P.I.,p.i. private investigator private investigator."]}, {"Bold_text": "abbreviation for", "List Items": ["piaster."]}, {"Bold_text": "abbreviation for", "List Items": ["Philippine Islands.", "Also PI,p.i. private investigator private investigator."]}]