Wikipedia:Babel/en

en	This user is a native speaker of English.

This user is able to contribute with a professional level of English.

en-4

This user speaks English at a near-native level.

en-3

This user is able to contribute with an advanced level of English.

en-2

This user is able to contribute with an intermediate level of English.

en-1

This user is able to contribute with a basic level of English.

This user does not understand English (or understands it with considerable difficulty).