network effect
B1CEFR level
50/100Rarity: uncommon
TechnicalRegister
A dynamic whereby a product becomes more valuable to each user as more people use it.
Once the network effect kicked in, the platform grew almost entirely by word of mouth.
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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