causality
C1CEFR level
58/100Rarity: uncommon
TechnicalRegister
The relationship between cause and effect, particularly the question of whether one factor genuinely produces another.
The regression showed a strong link between advertising spend and sales, but establishing causality required a controlled experiment.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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