TL;DR: This page includes a few examples of Anki flashcards for learning English that I happened to make in the past.
--Kelciour
Source: https://www.britannica.com/dictionary
Clear and simple definitions in basic American English from North America's leading language experts. More usage examples than any other dictionary.
Source: https://www.vocabulary.com
Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.
Our definitions were written by humans, for humans. Each word has a friendly explanation that makes it easy to remember.
Source: https://www.cambridge.org/us/cambridgeenglish/in-use
English Vocabulary in Use Elementary contains vocabulary explanations and practice for elementary level (A2) learners of English. You can expand your vocabulary with easy to understand explanations and learn words in context with 60 different topics, including ‘Food and drink’, ‘Shops and shopping’, and ‘Your phone’.