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noun
CEFR C1
a concept or idea not associated with any specific instance
Brevlex writes every example sentence around your interests, then schedules it with spaced repetition so it sticks. No generic textbook line — a sentence for you.
Each source is a real, checkable word list that contains abstraction. We never claim an official exam-board list — none is published for the GRE, GMAT, or SAT.