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THE ENGLISH DICTIONARY
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CEFR LEVEL
AllLevels9688 wordsA1Beginner1167 wordsA2Elementary1355 wordsB1Intermediate1391 wordsB2Upper Intermediate1242 wordsC1Advanced899 wordsC2Proficiency299 words
3335 entries have no recorded CEFR level and are included in All.
2 words & expressions
keystone species
word C1A species on which other species in an ecosystem largely depend, such that its removal would drastically alter the ecosystem.
↗kudos
word C1Praise and honor received for an achievement.
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