There are many synonyms for the phrase "made it big," which refers to someone who has achieved significant success in their career or field. Some alternatives include "hit the jackpot," "struck it rich," "made a name for oneself," "became a star," "achieved fame and fortune," "made a fortune," "attained great success," or "rose to the top." These phrases all convey a sense of triumph and accomplishment, and are often used in discussions of business, entertainment, and creative pursuits. Whether someone has "made it big" through hard work, talent, or a stroke of luck, these synonyms capture the thrill of achieving one's goals and realizing one's ambitions.