echelon
C1CEFR level
65/100Rarity: rare
TechnicalRegister
A distinct tier or stocking level within a multi-stage distribution network.
Holding safety stock at only the upper echelon freed up working capital across the regional depots.
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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