The Common European Framework of Reference for Languages (CEFR) is the international standard for describing language ability. It describes language ability on a six-point scale, from A1 for beginners, up to C2 for those who have mastered a language.
Understanding the Levels
A1-A2: Basic User
B1-B2: Independent User
C1-C2: Proficient User
Targeting vocabulary
Choosing your native level in Vocabitor helps you acquire words you actually need rather than memorizing obscure English phrases that are rarely ever used.