wear-out
B2CEFR level
70/100Rarity: rare
TechnicalRegister
The point at which repeated exposure to an ad stops working and starts irritating.
Creative wear-out set in by week six, so response rates cratered while spend held flat.
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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