👉 Good luck is a classic, catchy phrase used to express good wishes and support from a friend or family member. It's commonly used as an idiomatic expression that means "all the best" or "be well." Imagine you're giving someone your very best chance at success or happiness.
Example sentence: "You've got a great idea for a startup, but there are some hurdles to overcome; good luck with that!" This is more edgy and unsettling because it implies that even if someone has an amazing idea, they need help figuring out how to navigate the challenges of starting their business.