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Best Dictionaries & vocabulary Chrome extensions (2026)

The 20 most-used Dictionaries & vocabulary on the Chrome Web Store, ranked by real store users. Listings rated under 3 stars on 20+ ratings are left out. Pop-up dictionaries, word definitions, thesaurus, pronunciation, vocabulary builders and word-of-the-day.

Top 20 Dictionaries & vocabulary, ranked

  1. 1

    Google Dictionary (by Google)

    View definitions easily as you browse the web.

    ≈4M users4.4★ from 13.7K ratingsUpdated 8 months ago1 permissions
  2. 2

    Antidote Connector

    Integrate Antidote with your browser to proofread your writing in real time, check the dictionaries and language guides from the…

    ≈1M users3.0★ from 165 ratingsUpdated 7 days ago10 permissions
  3. 3

    NDIC - 누렁이 영어사전 (Noorung Dictionary)

    영어 단어의 뜻과 예문을 쉽게 찾을 수 있습니다.

    ≈100K users3.9★ from 742 ratingsUpdated 6 months ago6 permissions
  4. 4

    Rovo: Search, Chat, and more

    Take Rovo anywhere you work. Easily access Search, Chat, and Agents, and look up definitions outside your Atlassian products.

    ≈100K users4.5★ from 94 ratingsUpdated 6 days ago19 permissions
  5. 5

    Power Thesaurus

    Use the power of synonyms by button in toolbar, right-click or by word selection on any page.

    ≈100K users4.5★ from 491 ratingsUpdated 5 weeks ago6 permissions
  6. 6

    Mouse Dictionary

    A super fast dictionary for language learners

    ≈90K users4.7★ from 117 ratingsUpdated 3 weeks ago4 permissions
  7. 7

    Mochi Dictionary Extension

    Tra từ siêu tốc, lưu 70.000+ từ vựng để ôn tập cùng MochiMochi Extension

    ≈90K users4.1★ from 251 ratingsUpdated 2 weeks ago8 permissions
  8. 8

    Instant Dictionary by GoodWordGuide.com

    Dictionary Bubble (Instant Dictionary): quickly lookup word definitions with audio pronunciation as you browse the web.

    ≈80K users4.2★ from 460 ratingsUpdated 20 months ago5 permissions
  9. 9

    Laban Dictionary

    Tra từ dễ dàng khi duyệt web.

    ≈50K users4.3★ from 223 ratingsUpdated 8 weeks ago2 permissions
  10. 10

    English-to-English Definitions - Merriam-Webster Dictionary

    Find precise English-to-English definitions effortlessly and for free with this intuitive dictionary extension.

    ≈40K users4.6★ from 115 ratingsUpdated 9 months ago2 permissions
  11. 11

    Naver English Dictionary · NaverDic

    Enter a word directly, or double-click or select an English word on a webpage to look up its meaning. Select a sentence or…

    ≈40K users4.7★ from 78 ratingsUpdated 2 weeks ago7 permissions
  12. 12

    Etymonline

    Online Etymology Dictionary

    ≈40K users4.6★ from 42 ratingsUpdated 19 months ago2 permissions
  13. 13

    Cool Tooltip Dictionary 14

    영한, 영영, 영어유의어, 일한, 중한, 중중한, 한자, 프랑스어, 독일어, 스페인어, 러시아어, 핀란드어 단어 또는 문장에 마우스를 올리면 툴팁 사전이 뜹니다.

    ≈30K users4.7★ from 256 ratingsUpdated 22 months ago6 permissions
  14. 14

    Smart Terms for Confluence and Jira

    Turn Confluence into a seamless Wiki experience with a smart glossary and a powerfull definition engine.

    ≈30K users3.8★ from 4 ratingsUpdated 8 weeks agoNo special permissions
  15. 15

    All-in-One Cambridge Dictionary

    Instantly access 30+ Cambridge dictionaries on any website. Look up words via popup, right-click menu, hotkeys, or a floating icon.

    ≈20K users4.4★ from 35 ratingsUpdated 8 months ago3 permissions
  16. 16

    Cambridge Dictionary Lookup

    Looks up the selected text on Cambridge Dictionary

    ≈20K users4.7★ from 63 ratingsUpdated 16 months ago2 permissions
  17. 17

    Magoosh Vocabulary

    A new vocabulary word and its definition in your browser tabs

    ≈20K users4.6★ from 319 ratingsUpdated 18 months ago1 permissions
  18. 18

    Cambridge Dictionary

    Look up selected text in 'Cambridge Dictionary' page.

    ≈10K users4.6★ from 14 ratingsNot updated for 2+ years2 permissions
  19. 19

    Quizlet Hacker

    Automatically completes every quizlet activity!

    ≈10K users4.2★ from 18 ratingsUpdated 16 months ago1 permissions
  20. 20

    Burning Vocabulary - Learn words from reading

    Master vocabulary effortlessly with the full cycle process.

    ≈10K users4.4★ from 130 ratingsUpdated 2 months ago8 permissions

Dictionaries & vocabulary: questions

What is the most popular Dictionaries & vocabulary Chrome extension?

Google Dictionary (by Google) is the most used, with ≈4M users and a 4.4-star rating. Antidote Connector is next with ≈1M users.

Which Dictionaries & vocabulary extension has the best rating?

Of the listings with 100+ ratings, Mouse Dictionary rates highest: 4.7 out of 5 from 117 ratings.

Are these Dictionaries & vocabulary still maintained?

5 of the 20 listed here were updated in the last 30 days. Each card shows how recently it was updated.

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