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

Generally speaking, schools with larger shares of poor students have lower proficiency rates. — Rebecca Noel, Charlotte Observer, 9 Sep. 2026

Maye has already showcased proficiency under center and through his use of play action, as his ability to operate with his back to the line of scrimmage has accelerated his progression. — Jeff Howe, New York Times, 8 Sep. 2026

The students make progress toward nearing proficiency during elementary and middle school. — Francesca Pinney, Los Angeles Times, 8 Sep. 2026

Researchers at Yale University found that Spanish learners using Babbel for about 15 hours improved their oral proficiency by 100% in three months. — Stackcommerce Team, PC Magazine, 6 Sep. 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