[{"Bold_text": "noun", "List Items": ["the 23rd letter of the Greek alphabet (?, ?).", "the group of consonant sounds represented by this letter."]}, {"Bold_text": "noun", "List Items": ["any purportedly psychic , as psychokinesis, telepathy, clairvoyance, or the like."]}, {"Bold_text": null, "List Items": ["pounds per square inch."]}]