Top 5 TOEIC Dictionaries to Expand Your Vocabulary

Dictionaries are essential tools for language learners, not only providing meanings and pronunciations but also helping improve overall English skills when used effectively. To support TOEIC Preparation and vocabulary building, PREP introduces five highly recommended dictionaries for learners.
There are various types of dictionaries, including general dictionaries, specialized dictionaries, idiom dictionaries, and thesauruses (synonym dictionaries). Choosing the right TOEIC dictionary can make a significant difference in your TOEIC study process.

1. Merriam-Webster Dictionary

The Merriam-Webster Dictionary is one of the most comprehensive English dictionaries, offering over 330,000 words, including about 100,000 words with clear pronunciations recorded by native speakers. This TOEIC dictionary is highly beneficial for learners aiming to improve their vocabulary in an English-only environment.

Key Features:

• English-English definitions with detailed explanations

• Native speaker audio pronunciation for better listening skills

• Example sentences that illustrate real-world usage

• Daily word suggestions to enhance vocabulary

• Available as a free mobile app and a printed dictionary

Using Merriam-Webster helps learners develop their ability to think in English rather than relying on translations, which is crucial for TOEIC success.

2. Oxford Dictionary

The Oxford Dictionary is one of the most well-known and widely used dictionaries in the world. It provides in-depth word definitions, example sentences, pronunciation guides, and etymology (word origins). This TOEIC dictionary is available in both English-English and English-learner versions, making it suitable for different levels.

Key Features:

• Detailed word meanings with usage examples

• Pronunciation guides for British and American English

• Online version available for free with additional premium features

• Mobile app version with offline access for learners on the go

For learners who want to improve their TOEIC reading and listening comprehension, the Oxford Dictionary is an excellent choice, offering precise definitions and real-life sentence examples.

3. Cambridge Dictionary

The Cambridge Dictionary is another highly regarded English-English TOEIC dictionary, particularly well-known for its business-related vocabulary and TOEIC-focused terms. It provides clear and easy-to-understand definitions along with pronunciation guides for both British and American English.

Key Features:

• User-friendly definitions suitable for English learners

• Business English vocabulary for TOEIC preparation

• Extensive examples that show how words are used in different contexts

• Free online access with pronunciation audio

This TOEIC dictionary is highly beneficial for learners who want to strengthen their business vocabulary, which is a key component of the TOEIC exam.

4. Advanced English Dictionary & Thesaurus

The Advanced English Dictionary & Thesaurus is a powerful vocabulary-building tool with over 10,000 entries and 1.4 million related words. Unlike traditional dictionaries, it combines TOEIC dictionary definitions with a thesaurus, helping learners understand word relationships and expand their vocabulary efficiently.

Key Features:

• Extensive word database with definitions, synonyms, and antonyms

• Word of the Day feature to introduce new vocabulary daily

• Interactive word games such as Hangman and Anagram for fun learning

• Recent word search history for easy review

This TOEIC dictionary is perfect for learners who want to go beyond basic definitions and develop a deeper understanding of word usage and synonyms.

5. Business Dictionary

Business-related vocabulary is one of the most challenging aspects of the TOEIC exam. Many general dictionaries do not include business-specific terms, making it difficult for learners to find the precise meanings of words commonly used in corporate environments.

Key Features:

• Over 30,000 business-related words and terms

• Covers essential fields such as Management, Economics, Human Resources, Marketing, and Finance

• Free mobile app and online version for quick access

• Definitions tailored for business professionals and students preparing for TOEIC

For TOEIC test-takers aiming to improve their understanding of business terminology, this dictionary is a valuable resource, ensuring that they are well-prepared for the exam’s business-oriented content.

Conclusion

Expanding your vocabulary is a crucial part of TOEIC preparation, and using the right TOEIC dictionary can significantly enhance your learning experience. The five dictionaries recommended by PREP provide essential tools to improve your understanding of English words, phrases, and expressions.

By incorporating these dictionaries into your study routine, you can develop a strong foundation in English vocabulary, boost your confidence, and increase your TOEIC test scores. Keep exploring and learning with PREP to achieve your language goals!