[{"Bold_text": "noun", "List Items": ["Phonetics, Orthography.a diacritic (~) placed over ann,as in Spanishmañana,to indicate a palatal nasal sound or over a vowel, as in Portuguesesão,to indicate nasalization.", "swung dash swung dash.", "Mathematics.a symbol (?) indicating equivalency or similarity between two values.", "Logic.a similar symbol indicating negation."]}]