Proficient (adjective)
Good at something; skilled; fluent; practiced, especially in relation to a task or skill.
“He was a proficient writer with an interest in human nature.”
Proficient (noun)
An expert.
Advanced (adjective)
At or close to the state of the art.
Advanced (adjective)
Enhanced.
Advanced (adjective)
Having moved forward in time or space (e.g. advanced ignition timing).
Advanced (adjective)
In a late stage of development; greatly developed beyond an initial stage.
Advanced (adjective)
Pronounced farther to the front of the vocal tract.
Advanced (adjective)
Indicating a time ahead of the correct time.
Proficient (adjective)
competent or skilled in doing or using something
“I was proficient at my job”
“she felt reasonably proficient in Italian”
Proficient (noun)
a person who is proficient
“he became a proficient in Latin and Greek”
Advanced (adjective)
far on or ahead in development or progress
“negotiations are at an advanced stage”
Advanced (adjective)
new and not yet generally accepted
“his advanced views made him unpopular”