Possible Clues:

• Because, e.g.: Abbr.
• In the style of
• "And" or "or," e.g.: Abbr
• 'And' or 'but' (Abbr.)
• 'And' or 'or': Abbr
• 'Nor' or 'or,' in a dict
• "Nor" or "or," in a dict
• Dictionary abbr.