: Focus on the collocations (word pairings) and example sentences typically found in Longman dictionaries.
To truly "know" these words, learners must look beyond simple translation: The Oxford 5000™ (American English) Longman 5000 Words Pdf
Both are corpus-based. Longman focuses more on distinction. Oxford includes more academic words. For general fluency, Longman wins. : Focus on the collocations (word pairings) and