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

No one in the city has turned to the Sixers for salvation for years, accustomed to a process that never proceeded. — Dana O’Neil, CNN Money, 21 Oct. 2026

The meeting attendees at AP6 had the faces of people accustomed to scrutiny. — Gideon Lewis-Kraus, New Yorker, 19 Oct. 2026

Judges accustomed to parsing the Constitution are now being forced to decide how many trees may be cut down or whether paint tests can proceed. — Gary Fields, Los Angeles Times, 19 Oct. 2026

Qatar, a gas-rich monarchy in the Persian Gulf, is accustomed to walking a fine line. — Eric Cortellessa, Time, 18 Oct. 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