accustom

verb

ac·​cus·​tom ə-ˈkə-stəm 

accustomed; accustoming; accustoms

transitive verb

: to make familiar with something through use or experience

accustomation

ə-ˌkə-stə-ˈmā-shən 

noun

Synonyms of accustom

• introduce
• familiarize
• educate
• orient

Examples of accustom in a Sentence

the task of accustoming new recruits to shipboard life

Recent Examples on the Web

Travelers accustomed to the airline’s previous flexibility will need to budget for extra seating, navigate new booking requirements, and prepare for possible refund restrictions. —Amanda Greenwood, MSNBC Newsweek, 4 Dec. 2025

Interest rates still feel high to an electorate accustomed to the historically low levels of the 2010s. —Abby McCloskey, Twin Cities, 3 Dec. 2025

His favorite targets were guys not accustomed to being at the top of the stat sheet. —Idaho Statesman, 29 Nov. 2025

The European Space Agency's Solar Orbiter mission recently captured a dramatic solar prominence rising from the edge of the sun, a rare and captivating sight even for mission scientists accustomed to our home star's constant activity. —Kenna Hughes-Castleberry, Space.com, 26 Nov. 2025

Word History

Etymology

Middle English acustomen "to habituate (reflexive or intransitive)," borrowed from Anglo-French acustumer, acostumer, from a-, prefix forming transitive verbs (going back to Latin ad- ad-) + -customer, costomer, verbal derivative of custume custom entry 1

First Known Use

15th century, in the meaning defined above

Phrases Containing accustom

• accustom oneself to

Rhymes for accustom

• custom
• frustum

Kids Definition

accustom

verb

ac·​cus·​tom ə-ˈkəs-təm 

: to make familiar