[{"Bold_text": "verb (used without object)", "List Items": ["to make a choice; choose (usually followed byfor).Synonyms: elect , pick , select"]}, {"Bold_text": "verb phrase", "List Items": ["to decide to make use of or take part in something:To receive automatic updates, opt in under the email notification section.", "to decide to withdraw from or not take part in something:You can opt out of the pension plan, but you lose the employer and government contribution."]}, {"Bold_text": "abbreviation for", "List Items": ["optative.", "optical.", "optician.", "optics.", "optional."]}]