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

Why Babbel Actually Works Researchers at Yale University found that 100% of participants improved their oral proficiency within three months of using Babbel. —PC Magazine, 8 Nov. 2025

Performing Saint-Saëns’ concerto, Kim shows proficiency and poise, with the ability to make her notes angelic. —Sheila Regan, Twin Cities, 7 Nov. 2025

The district made changes over three years, starting in the 2021-22 school year, to improve students' reading proficiency. —Alec Johnson, jsonline.com, 6 Nov. 2025

Despite this, district leaders in the Valley are being proactive in improving performance across schools, particularly among attendance and reading proficiency. —Erick Trevino, AZCentral.com, 5 Nov. 2025

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