It’s always surprised me that search engines don’t point to Wiktionary by default, and in fact usually don’t show it in search results on the first page.

Over the years, it has gotten better and better and now is an almost universal resource on all word forms. You see a word and don’t know what it means? You put it in the search bar at Wiktionary and the site will figure out it is the second person aorist of the passive voice of the Ancient Greek verb kataminomai, used only between the second and third centuries in the Hellenistic colonies of Mars. Made up example, of course, but the quality of the information is insane.

Double reminder that local offline copies of wiktionary.org dictionaries are available in Stardict, Tabfile and Kindle formats for download here: https://github.com/Vuizur/Wiktionary-Dictionaries

Yep, exactly this.

I use OED as my standard reference when writing - I can log in from anywhere with my library card number and get full access without paying a penny.