Competent (adjective)
Having sufficient skill, knowledge, ability, or qualifications.
“He is a competent skier and an expert snowboarder.”
Competent (adjective)
Having jurisdiction or authority over a particular issue or question.
“For any disagreements arising from this contract, the competent court shall be the Springfield Circuit Court.”
“judicial authority having competent jurisdiction”
Competent (adjective)
Adequate for the purpose
Competent (adjective)
permeable to foreign DNA
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.
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”