The state or quality of being proficient; competence.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "proficiency" in a sentence
"The only way to truly obtain proficiency is to read blogs."
"The state, for whatever reason, the Regents, changed the definition of what they call proficiency."
"'' One pilot was giving the other pilot what we call a proficiency check, and the accident occurred, '' FAA spokeswoman Kathleen Bergen said."