iToonesName

Free. No adds. Fast. Does not collect user data. Links to similar and opposites. More specific alternatives, less specific alternatives. Pronunciation. Usage examples. Origin/etymology. Well organized and easy to read. Simple and to the point. No word of the day or gimmicky distractions. I offloaded the Oxford and American dictionary apps in favor of this one.

I have used it for a couple of years and never an issue. iPhone X with iOS 11 Question - are you planning to update for the X’s taller screen?