CEFR word level
What CEFR level is “mostly”?
Estimated level
B2
upper-intermediate
“mostly” is roughly the #2889 most common English word, which puts it at an estimated B2 level.
Meaning
adverb. Mainly or chiefly; for the most part; usually, generally, on the whole.
Example: They're mostly good people, although they have made a few mistakes.
Similar words: by and large, in the main, largely.
How the level is decided
The level is an estimate based on word frequency: the more common a word is in everyday English, the lower its CEFR level. “mostly” sits in the B2 band. It is a quick guide for choosing what to study, not an official CEFR rating. Check any other word or a whole list with the word level checker.
Other B2 words to learn
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