attrition
B2CEFR level
55/100Rarity: uncommon
TechnicalRegister
Medicine noun
The physiological wearing of tooth surfaces resulting from tooth-to-tooth contact.
Marked incisal attrition reflected years of parafunctional grinding.
Business noun
A gradual reduction of staff or strength.
They cut headcount through natural attrition, not layoffs.
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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