postulate
C1CEFR level
55/100Rarity: uncommon
TechnicalRegister
General verb
To assume or assert the existence of something as a foundation for reasoning.
Euclidean geometry postulates that parallel lines never meet.
Business verb
To suggest or assume something as a basis for reasoning, without immediate proof.
The model postulates that switching costs are the primary driver of customer retention.
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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