Yes, deleting an application will free up storage space on your MacBook. Applications can take up a significant amount of space, especially if they include large files or data. When you delete an application, you remove its files from your hard drive, thereby reclaiming storage space. However, keep in mind that some applications may leave behind residual files that could still occupy some storage. If you need to free up more space, you may consider using a disk cleaning tool or manually searching for leftover files to delete.