contra proferentem
C2CEFR level
98/100Rarity: very rare
TechnicalRegister
Law noun
The rule that an ambiguous term is construed against the party who drafted it.
Any doubt in the exclusion clause falls to be resolved contra proferentem.
Business phrase
The rule that ambiguous contract wording is construed against the party that drafted it.
The insurer wrote that exclusion itself, so the tribunal read it contra proferentem and the claim was paid.
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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