Head-to-head · Online Dictionaries
Merriam-Webster Dictionary vs American Heritage Dictionary
Merriam-Webster Dictionary leads on 0 checks, American Heritage Dictionary on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreMerriam-Webster Dictionary · 9.0/10
- Free planboth
Merriam-Webster Dictionary scores higher on our rubric for online dictionaries: 9.0 against 8.1 out of 10; our editors rank them #5 and #14.
Merriam-Webster Dictionary is the better fit for english definition and thesaurus users. American Heritage Dictionary is the better fit for detailed English usage and etymology.
- Merriam-Webster Dictionary fits best
English definition and thesaurus users
- American Heritage Dictionary fits best
Detailed English usage and etymology
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Side by side
| Feature | Merriam-Webster Dictionary 9.0/10 Visit ↗ | American Heritage Dictionary 8.1/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 8.1 |
| Ranking | #5 in Online Dictionaries | #14 in Online Dictionaries |
| Best for | English definition and thesaurus users | Detailed English usage and etymology |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | — | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Mobile | Cloud, Mobile |
| Platforms | Web, iOS, Android | Web, iOS, Android |
| Features Merriam-Webster Dictionary 4/4 · American Heritage Dictionary 4/4 | ||
| Audio pronunciation | ✓ | ✓ |
| Usage examples | ✓ | ✓ |
| Translation lookup | ✓ | ✓ |
| Offline access | ✓ | ✓ |
| Specs | ||
| Mobile apps | Ios_android | Ios_android |
| Languages covered | 1 | Not checked yet |
| Our review | ||
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| Our verdict | Merriam-Webster Dictionary is an online English-language reference service for definitions, pronunciations, synonyms, usage examples, word histories, and related language information. It suits students, writers, learners, and anyone who… Read the review → |
American Heritage Dictionary is an English reference dictionary for students, professionals, academics, and general readers. It provides searchable dictionary entries on the web and through iOS and Android apps, with definitions,… Read the review → |
Strengths and trade-offs
Merriam-Webster Dictionary — where it wins
- Free definitions, audio pronunciations, examples, and thesaurus content
- Offline definitions and synonyms are available in the mobile apps
- Voice search, quizzes, games, favorites, and search history support learning
Where it doesn't
- The primary dictionary experience is focused on English
- Premium access is required for an ad-free experience
- Medical, legal, and kids dictionaries require additional purchases
American Heritage Dictionary — where it wins
- Usage Panel guidance supports grammar and usage decisions.
- Etymologies include Indo-European and Semitic root appendices.
- Mobile apps offer voice, camera, audio, and offline lookup.
Where it doesn't
- Its reference focus is English rather than broad multilingual coverage.
- Audio and offline lookup require the full mobile version.
- Mobile pricing and feature availability differ by store and app version.
- Merriam-Webster Dictionary9.0/10 · Free plan
A strong free English reference with audio, examples, thesaurus tools, and mobile lookup.
Visit DictionaryFull verdict → - American Heritage Dictionary8.1/10 · Free plan
A detailed English reference for definitions, usage, etymology, and pronunciation.
Visit the dictionaryFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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