Learning & Education
Best Online Dictionaries in 2026
Looking up a word might mean checking a definition, hearing its pronunciation or finding how it translates into another language. Compared on languages covered, translation lookup, usage examples and audio pronunciation, these entries offer details to weigh against the kind of lookup you do.
- 01
Duden-Mentor Duden-Mentor suits people writing German who want spelling, grammar, punctuation, and style suggestions in browser text fields or supported versions of Word.
From €2.99/mo Free plan Web · Windows · macOS · API9.3 Visit Specs - 02 MDBG Chinese Dictionary
It suits Chinese learners who want dictionary lookup alongside text annotation and practice tools.
Free plan Web · Windows · macOS · iOS9.1 Visit Specs - 03
Oxford Learner’s Dictionaries The Oxford Advanced Learner’s Dictionary is designed for advanced-level learners of British or American English.
From $0.83/mo Free plan Web · macOS · iOS · Android9.0 Visit Specs - 04 ABBYY Lingvo
Lingvo suits people who need dictionary lookup for study or work, including users seeking specialist vocabulary or offline mobile access.
Free plan Windows · macOS · iOS · Android8.8 Visit Specs - 05
The Free Dictionary It suits readers looking up definitions, translations, pronunciations, and reference material, including those who want offline English dictionary and thesaurus access.
Free plan Web · Windows · macOS · iOS8.8 Visit Specs - 06 LEO Dictionary From €0.62/mo Web · iOS · Android · Browser extension8.6 Visit Specs
- 07 Linguee
It suits people looking up translations, comparing usage examples, and consulting dictionaries on web or mobile devices.
Free plan Web · iOS · Android8.5 Visit Specs - 08 American Heritage Dictionary Free plan Web · iOS · Android8.4 Visit Specs
- 09
Cambridge Dictionary Cambridge Dictionary suits English learners at different levels, as well as people preparing for Cambridge English exams or IELTS.
Free plan Web · iOS · Android · API8.3 Visit Specs - 10 dict.cc
dict.cc suits people looking up translations or contributing corrections to dictionary entries.
Free plan Web · macOS · iOS · Android8.3 Visit Specs - 11
Larousse Dictionaries It suits general users looking up French definitions, synonyms, verb forms or bilingual translations.
From €99/mo Free plan Web · Windows · iOS · Android8.3 Visit Specs - 12
Merriam-Webster Dictionary It suits readers who want dictionary and thesaurus lookup, including offline access, or vocabulary tools such as quizzes and saved words.
From $0.83/mo Free plan Web · iOS · Android · API8.2 Visit Specs - 13 Diccionario de la lengua española Free plan Web · iOS · Android8.1 Visit Specs
- 14 GoldenDict
GoldenDict suits readers who want to combine local dictionaries, web references, and lookups from other applications.
Free plan Windows · macOS · Linux · Android8.1 Visit Specs - 15
Merriam-Webster Medical Dictionary It suits readers building medical vocabulary or looking up terminology and abbreviations.
Free plan Web · iOS · Android8.1 Visit Specs - 16 Dictionary.com Free plan Web · iOS · Android8.0 Visit Specs
- 17 Pleco Chinese Dictionary Free plan iOS · Android8.0 Visit Specs
- 18 NAVER Dictionary Free plan Web · iOS · Android7.8 Visit Specs
- 19
PONS Dictionary It suits people looking up words and phrases, including users who need offline dictionaries or pronunciation audio.
Free plan Web · iOS · Android · API7.8 Visit Specs - 20 Vocabulary.com From $5/mo Free trial Web · iOS · Android7.8 Visit Specs
- 21 WordWeb
WordWeb suits readers who want an English reference tool for definitions, related words, examples, and translation lookup, including offline use.
From $1.50/mo Free plan Windows · macOS · iOS · Android7.8 Visit Specs - 22 Longman Dictionary of Contemporary English Web · macOS · iOS · Android7.7 Visit Specs
- 23 Van Dale Online
Van Dale Online suits professionals, secondary and higher education users, and NT2 learners who need online dictionary access.
From €0.25/mo Free plan Web · iOS · Android7.7 Visit Specs - 24 Lingoes Free plan Windows · Android7.6 Visit Specs
- 25
Glosbe Web · iOS · Android7.5 Visit Specs
Mobile apps and offline access can matter when you need words away from a browser or connection. ABBYY Lingvo, Oxford Learner’s Dictionaries and WordWeb are among the options shown. Check free-plan availability and paid-from pricing too, then compare the listed features with your language and reference needs.
Compare Duden-Mentor and MDBG Chinese Dictionary Get a place on this list