When it comes to expressing courage and audacity, there are several synonyms for the phrase "to make bold". One alternative is "to take a leap", which signifies taking on a daring venture or embracing a bold decision. Similarly, "to show nerve" conveys displaying boldness and confidence, particularly in challenging situations. Another term, "to exhibit guts", emphasizes demonstrating bravery and fearlessness. Additionally, "to display audacity" exemplifies behaving with boldness and asserting oneself with brazen confidence. Lastly, "to demonstrate boldness" highlights the act of showcasing fearlessness and taking risks without hesitation. These synonyms offer a range of expressions to emphasize and capture the spirit of being bold.