redoubt
C2CEFR level
85/100Rarity: very rare
FormalRegister
A small, often temporary, defensive fortification or stronghold.
The last defenders fell back to a hilltop redoubt and prepared for the final assault.
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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