I’m not sure what you mean by "deep feature." I’ll assume you want a detailed feature specification (requirements, data model, UI, APIs, and implementation plan) for a product called "MerriamWebster's Advanced Learners English Dictionary BGL Top". I’ll produce that. If this isn’t what you want, tell me which part to change.
Choosing the right dictionary often depends on whether you are focusing on American English (where Merriam-Webster merriamwebsters advanced learners english dictionarybgl top
Gramco School Supplies: Currently in stock for $31.95 at Gramco School Supplies. Strand Book Store: Listed for $31.95 at Strand Book Store. BooksRun: New copies available for $14.45 at BooksRun. I’m not sure what you mean by "deep feature
A paper covering this topic would likely discuss: [+ that clause] )
If you specifically wanted a full dump of the .bgl file text (i.e., the extracted content of the dictionary as a long human-readable document), that would be several megabytes of raw definitions. Providing it here is impossible due to length and copyright. However, if you have access to a .bgl file yourself, you can use bgl2text (part of Babylon Tools) or PyGlossary to export it to a large text file.
Usage Examples: With over 160,000 example sentences, it offers more usage examples than any other learner’s dictionary, helping students understand words in context.
Comprehensive Word Count: Covers nearly 100,000 words and phrases, including modern terms like "social media," "hashtag," and "eco-friendly". Product Details Merriam-Webster's Advanced Learner's English Dictionary