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Meaning of stiff up | Babel Free

Verb CEFR B2

Definitions

To apply rubber without oil as part of the French polishing process.
Synonym of stiffen up.
transitive

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

stiff-arm stiff-armed stiff-arming stiff-arms stiffed stiffed up