The "4500 Key English Words" set is a structured vocabulary framework designed to enhance language proficiency from intermediate to advanced levels by covering high-frequency words crucial for academic and daily usage. This collection typically spans three tiers, moving from fundamental communication to advanced, specialized vocabulary to achieve approximately 98% text comprehension. For curated high-frequency lists and resources, reputable academic sources like the Oxford 5000, New General Service List (NGSL), and the Academic Word List (AWL) offer valuable, free materials.
4500 Key English Words is a comprehensive four-book series published by Seed Learning designed to expand the vocabulary of intermediate English learners. When combined with its partner series, 1200 Key English Words , it provides students with a working vocabulary of 4,500 high-frequency, practical words often found in academic textbooks. Series Overview 4500 Key English Words Pdf
| Word | Part of Speech | Definition | Example Sentence | | :--- | :--- | :--- | :--- | | | Adj | Not obvious; delicate | "There was a subtle change in his tone." | | Ambiguous | Adj | Having double meaning | "The contract was ambiguous , so we got a lawyer." | | Alleviate | Verb | To make less severe | "This medicine will alleviate your pain." | | Rigor | Noun | Strictness; harsh conditions | "The academic rigor of MIT is famous." | | Ephemeral | Adj | Lasting a short time | "Social media trends are often ephemeral ." | | Mitigate | Verb | To reduce harm | "Trees help mitigate climate change." | | Pragmatic | Adj | Practical; realistic | "Let's take a pragmatic approach to the budget." | | Diligent | Adj | Hardworking; careful | "She is a diligent student who studies daily." | | Innovate | Verb | To introduce new methods | "Tech companies must innovate to survive." | | Context | Noun | Circumstances around an event | "You need context to understand the joke." | The "4500 Key English Words" set is a