root cause analysis
B2CEFR level
45/100Rarity: uncommon
TechnicalRegister
A structured investigation to find the underlying reason a problem occurred rather than its symptoms.
Root cause analysis traced the recurring fault back to a mis-calibrated sensor.
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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