significator
/sɪgˈnɪfɪkətə(r)/noun
1- Astrology (in a horary chart) the planet which signifies the inquirer, or the subject of the question【占星】（占星图的）守护星。
1.1
- a card chosen to represent the inquirer in a tarot reading（塔罗占卜用的）指示牌。