Under the Attribution-NonCommercial license, commonly abbreviated as CC BY-NC, you are free:
copy and redistribute the material in any medium or format
remix, transform, and build upon the material
Under the following conditions:
Attribution — You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
NonCommercial — You may not use the material for commercial purposes.
It means, that you’re free to use this sound effect in any of your videos, but you must include the following in your video or audio description: This video/item contains sound effect Stone strikes that is licensed under a Creative Commons Attribution-NonCommercial license. Source: https://directory.audio/sound-effects/foley/36538-stone-strikes Author: Attention: Don't use this sound effect for commercial purposes.
