* Adjective: This is the most common use. It describes a noun, like "a bold color" or "a bold statement."
* Verb: It can be a verb meaning to make something stand out or to emphasize it, like "bold the important words" or "the headlines were bolded in the newspaper."
* Noun: While less common, "bold" can be a noun meaning a daring person or action. For example, "He was known for his bold moves in the stock market."
To determine the part of speech, you need to look at the context of the sentence.