backorder
B2CEFR level
45/100Rarity: uncommon
TechnicalRegister
A customer order that cannot be fulfilled immediately because stock is unavailable but will be shipped later.
Half the line is on backorder, and customers are cancelling rather than waiting three more weeks.
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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