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

That distinction is often lost on international visitors accustomed to restaurants where service costs are already included in menu prices. — Doug Melville, Forbes.com, 7 July 2026

Californians are accustomed to legislating by the ballot and often face a list of propositions. — Iris Kwok, Los Angeles Times, 6 July 2026

England fans accustomed to the relentless pace of the Premier League have loudly booed hydration breaks at the World Cup, but Thomas Tuchel’s side benefited from them after going down early in a comeback win over the Democratic Republic of Congo. — Andrew Greif, NBC news, 3 July 2026

For collectors accustomed to discussing ébauches or movement suppliers today, the model feels remarkably familiar. — Victoria Gomelsky, Robb Report, 3 July 2026

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