jargon
B1CEFR level
25/100Rarity: fairly common
TechnicalRegister
Specialised or technical language that outsiders may not understand.
When you brief the family, strip out the jargon and use plain words.
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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