Please someone tell me what is the "A1", "A2", "B1", "B2", "C1" and "C2" level. Secondly, are all of the "C1" and "C2" words formal? Even though, I know if someone's English level is C1 or C2, that means they are fluent in English, I don't have the foggiest about what is a C2 word.
https://dictionary.cambridge.org/dictionary/english/offspring
Where did you find these code-names for levels? They don't seem to be in your link. Clive
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Where did you find these code-names for levels? They don't seem to be in your link.
Clive