As a writer, having the Webster's 1913 accessible in the macos app so I can quickly search for a word using an Alfred workflow has proven a super valuable resource for me. I do this several times a day.

There's also a nice little ios app of the same dictionary: https://apps.apple.com/us/app/websters-writers-dictionary/id... I use it alongside Terminology (made by the excellent 'Drafts' dev): https://apps.apple.com/us/app/terminology-dictionary/id68779...