400 Must-Have Words for the TOEFL — Complete Vocabulary Guide with Definitions & Examples

400 Must-Have Words for the TOEFL — Complete Vocabulary Guide with Definitions & Examples

Welcome to the ultimate vocabulary guide based on “400 Must-Have Words for the TOEFL,” one of the most trusted and widely used books for TOEFL exam preparation. If you're preparing for the TOEFL iBT, aiming to boost your academic English, or improving your vocabulary for university-level learning, this video is one of the most effective tools you can use.

In this lesson, we cover essential TOEFL vocabulary words from the well-known “400 Must-Have Words” list, organized into themes such as environment, science, culture, technology, social issues, and more. Every word is explained clearly with definitions, synonyms, and real sentence examples so you can understand and remember them easily — exactly the way the TOEFL exam expects you to.

The TOEFL requires strong academic English, and vocabulary plays a crucial role in all sections: Reading, Listening, Speaking, and Writing. Many TOEFL questions depend on your ability to understand high-level words in context, interpret academic passages, and express ideas clearly. This video gives you the vocabulary foundation you need to score higher in every part of the exam.

🌟 What You’ll Learn in This Video:
✔ Key TOEFL vocabulary from the 400-word master list
✔ Simple definitions you can understand instantly
✔ Synonyms and related word forms
✔ Example sentences for real academic context
✔ Word roots and patterns to help with guessing meanings
✔ Memory strategies to improve retention
✔ Tips for using these words in TOEFL speaking and writing tasks

This vocabulary will help you understand academic readings, lectures, and discussions more easily. You’ll also learn how to use these words naturally when answering speaking prompts or writing essays — a major advantage in getting a higher TOEFL score.

📘 Why These 400 Words Are Essential:
• Frequently appear in TOEFL reading passages
• Help you understand academic lectures more clearly
• Boost writing quality and speaking clarity
• Improve comprehension speed and reduce confusion
• Increase confidence during test day

Whether you're preparing for TOEFL independently or studying with a teacher, adding this vocabulary to your daily practice will dramatically improve your performance. Make sure to pause the video, take notes, and repeat the words out loud — active learning is the key to success!

If you would like a PDF of all 400 words, flashcards, or an Anki deck for spaced repetition, comment below and I’ll create them for you.

Don’t forget to like, subscribe, and turn on notifications for more TOEFL vocabulary lessons, reading practices, listening drills, and complete TOEFL preparation videos.

🚀 Master these 400 words, and you’ll be one major step closer to your target TOEFL score!

List of content:
00:00:00 Intro
00:00:10 Unit 01
00:04:27 Unit 02
00:08:48 Unit 03
00:13:10 Unit 04
00:17:19 Unit 05
00:21:40 Unit 06
00:26:28 Unit 07
00:30:55 Unit 08
00:35:02 Unit 09
00:39:32 Unit 10

00:44:06 Unit 11
00:48:26 Unit 12
00:52:43 Unit 13
00:57:31 Unit 14
01:02:18 Unit 15
01:06:43 Unit 16
01:10:44 Unit 17
01:14:55 Unit 18
01:19:11 Unit 19
01:23:37 Unit 20

01:27:43 Unit 21
01:31:51 Unit 22
01:35:32 Unit 23
01:39:39 Unit 24
01:43:45 Unit 25
01:48:24 Unit 26
01:53:01 Unit 27
01:57:23 Unit 28
02:01:54 Unit 29
02:05:48 Unit 30

02:10:41 Unit 31
02:14:52 Unit 32
02:19:09 Unit 33
02:23:15 Unit 34
02:26:55 Unit 35
02:30:50 Unit 36
02:35:22 Unit 37
02:39:20 Unit 38
02:43:30 Unit 39
02:47:33 Unit 40