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

Viewed through modern eyes accustomed to pull-up 30-footers and five-out spacing, the triangle appears downright archaic – especially with its seven non-negotiables that fly in the face of today’s free-flowing game. —Joseph Dycus, Mercury News, 25 Dec. 2025

As someone accustomed to buzzy South Beach, North Beach felt like the unaffected counterpart, quieter and far less commercialized, with the beach steps away. —Samantha Leal, Travel + Leisure, 21 Dec. 2025

The spike in violence has unsettled a population accustomed to relative stability and has turned public security into Chile’s top political issue. —Morgan Phillips, FOXNews.com, 15 Dec. 2025

Masayoshi Son, the famed Japanese investor, is accustomed to the hype cycles of new technology. —Charlie Campbell, Time, 11 Dec. 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