Language learners need open dictionaries with definitions, etymology, and difficulty tiers rather than monolingual reference walls. These free tools cover six languages — English (AWL/CEFR), French, German Kompositum decomposition, Arabic, Portuguese, and Japanese POS tagging.
VocabWize
English word definitions, AWL sublists, and CEFR difficulty tiers.
Check it out: vocabwize.com
VocabLibre
French dictionary with 250,000+ word definitions.
Check it out: vocablibre.com
WortWize
German dictionary with Kompositum decomposition for 250,000+ words.
Check it out: wortwize.com
KalimaWize
Arabic dictionary with 250,000+ word definitions.
Check it out: kalimawize.com
DicionarioWize
Portuguese dictionary with 250,000+ word definitions.
Check it out: dicionariowize.com
KotobaPeek
Japanese dictionary with 34,000+ word definitions and POS tagging.
Check it out: kotobapeek.com
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All data tools are free and use public US government data. No signup required. Full directory: datapeekfacts.com.
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