Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Another example is long-pressing the side button to engage with Siri.
Source: https://www.slashgear.com/1401112/hidden-features-iphone-power-button/
Enter jiggle mode by long-pressing on the home screen, tap on the dots at the bottom, and deselect the pages you want to hide.
Source: https://www.devicemag.com/iphone-13-pro-tips-and-tricks/