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

The latest figures put the district’s ELA proficiency rate at about 43%. — Molly Morrow, Chicago Tribune, 2 Nov. 2026

Presiding Judge Paul Ganim — the brother of Bridgeport Mayor Joe Ganim — frequently inquires about an applicant’s academic performance and proficiency in English, according to lawyers. — Sasha Allen, Hartford Courant, 1 Nov. 2026

According to immigration policy experts, English proficiency among the immigrant voting class is an indicator of an informed and engaged electorate free from outside influence. — Mia Cathell, The Washington Examiner, 30 Oct. 2026

These days, leading a major college athletics program requires a touch of legal proficiency alongside the Xs and Os. — ABC News, 29 Oct. 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