proficiency

noun

pro·​fi·​cien·​cy prə-ˈfi-shən(t)-sē 

1

: advancement in knowledge or skill : progress

2

: the quality or state of being proficient

Synonyms of proficiency

• mastery
• experience
• IQ
• mastership
• command

Examples of proficiency in a Sentence

surprised by his proficiency at the game after only the briefest explanation of the rules

acquired proficiency at golf through long hours of practice

Recent Examples on the Web

Pilots must undergo constant retraining and regular proficiency checks, and the travel schedule can be demanding—especially early in a career when seniority is low. —Preston Fore, Fortune, 13 Mar. 2026

This standardized method would run into the vacuum created by the absence of any statewide measure of academic proficiency, now that the MCAS no longer provides that measuring stick. —Editorial, Boston Herald, 7 Mar. 2026

Anyone who wants to own a gun for self-defense must be over 21 and pass proficiency tests and background checks. —ABC News, 6 Mar. 2026

That's despite a wide body of research showing early literacy builds cognitive skills, reading proficiency and long-term academic success. —Kayla Huynh, jsonline.com, 6 Mar. 2026

Word History

First Known Use

1597, in the meaning defined at sense 2

Rhymes for proficiency

• deficiency
• efficiency
• sufficiency
• immunodeficiency
• inefficiency
• insufficiency

Kids Definition

proficiency

noun

pro·​fi·​cien·​cy prə-ˈfish-ən-sē 

plural proficiencies

: the quality or state of being proficient