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

Eric is charming, calculating, and accustomed to always getting his way at all costs. —Rosy Cordero, Deadline, 25 Mar. 2026

For frequent travelers accustomed to efficiency, the idea of arriving at the airport half a day early can feel untenable. —Nathan Diller, USA Today, 23 Mar. 2026

For someone accustomed to evaluating timelines and milestones, these rapid-harvest vegetables provide early wins that build confidence and momentum. —Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 23 Mar. 2026

Auriemma said from the beginning of the season that no one on this year’s team could fully fill that role, and finding new leadership would be a process for players accustomed to relying on Bueckers. —Emily Adams, Hartford Courant, 18 Mar. 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