virality
B1CEFR level
30/100Rarity: fairly common
TechnicalRegister
The tendency of content to spread rapidly through sharing rather than paid reach.
You can engineer for virality, but you can't guarantee it, so never bank the forecast on it.
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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