Guide light is an illuminating source that gives direction and guidance. It is a term often used in both literal and figurative senses. Synonyms for the term guide light may include words such as beacon, luminary, compass, leader, mentor, and orientation. A beacon is a bright light source that serves as a warning or a signal for direction. A luminary is an influential person who can act as a guide or a role model. Compass refers to a guiding device that helps to give direction, while leader and mentor are individuals who provide guidance in specific areas such as work or education. Orientation is another synonym for guide light that refers to a sense of direction or outlook towards a particular goal.