Beginner:
You have little or no previous exposure to English.
Pre-intermediate:
You can use basic grammatical constructions and have basic situational comprehension.
Intermediate
You converse easily about everyday matters but have a limited range of style.
Upper-Intermediate:
You have a strong understanding of most texts and conversation topics. Your grammar is strong too.
Advanced:
You are a confident communicator and have full use of functional language.
Fluent:
You communicate with nearly the same proficiency as a native speaker.