wildcat
B2CEFR level
60/100Rarity: rare
TechnicalRegister
Describing a strike undertaken suddenly and without official union authorisation.
A wildcat walkout over the sacking spread from one depot to the next within hours.
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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