return on ad spend
B2CEFR level
60/100Rarity: rare
TechnicalRegister
The revenue generated for every unit of currency spent on advertising.
The campaign delivered a return on ad spend of four to one, so we're doubling the budget.
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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