The term 'royalty-free' is commonly used in the context of copyright and intellectual property, particularly for creative works such as images, music, video, and software. Once a user acquires a royalty-free license, they can use the licensed material in their projects without incurring ongoing fees, provided they adhere to the terms of the license. The concept is especially prevalent in stock photography and music libraries, where creators sell their works under this model. However, it's important to note that 'royalty-free' does not mean 'free'; users still need to pay for the license in many cases.