What is thank goodness meaning?

The phrase "thank goodness" is an expression of relief or gratitude. It is often used as a way to indicate that a troublesome or difficult situation has been resolved or avoided. The phrase is considered to be a more polite and less irreverent alternative to saying "thank God." It is commonly used in casual conversation and can be used in response to a variety of positive outcomes, such as receiving good news or avoiding something negative. Overall, "thank goodness" is a way to express appreciation for a positive outcome or situation.