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 have long been accustomed to packing liquids in their carry-on bags according to the TSA liquid limit, also known as the 3-1-1 rule. — Rachel Chang, Condé Nast Traveler, 30 July 2026

The public-shaming impulse has been, at times, a reaction to years of bad behavior—particularly among men accustomed to getting away with a lot and facing very few repercussions. — Faith Hill, The Atlantic, 28 July 2026

Those who have tracked Tannenbaum over his career are accustomed to the ugly financial dramas that seem to follow him. — Danielle Chemtob, Forbes.com, 28 July 2026

Such an alliance requires new ways of thinking, says Storin, to which some advertisers may not be accustomed. — Brian Steinberg, Variety, 21 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