1
: a basic garment for infants consisting of a folded cloth or other absorbent material drawn up between the legs and fastened about the waist to hold body waste
also : a similar garment especially for incontinent adults
2
: a fabric with a distinctive pattern:
a
: a rich silk fabric
b
: a soft usually white linen or cotton fabric used for tablecloths or towels
3
: an allover pattern consisting of one or more small repeated units of design (such as geometric figures) connecting with one another or growing out of one another with continuously flowing or straight lines

Illustration of diaper

Illustration of diaper
  • diaper 3

diaper

2 of 2

verb

transitive verb

1
: to put on or change the diaper of (an infant)
2
: to ornament with diaper designs

Examples of diaper in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Put something that will serve as a visual cue that your child is with you, such a diaper bag, in the front seat. Janet Loehrke, USA Today, 30 June 2026 These days, the cast of the Harry Potter films wields more diapers than magic wands. Chiara Kim, PEOPLE, 30 June 2026
Verb
This person should have your full authority to wipe the noses of users and diaper the salespeople when needed. Gene Marks, Forbes, 7 June 2021 Families spend $75 a month to diaper one child, or 8% of a full-time minimum wage salary, and prices are expected to go up. Jennifer Randles, Time, 6 May 2021 See All Example Sentences for diaper

Word History

Etymology

Noun

Middle English diapre, from Anglo-French diaspre, from Medieval Latin diasprum

First Known Use

Noun

14th century, in the meaning defined at sense 2

Verb

14th century, in the meaning defined at sense 2

Time Traveler
The first known use of diaper was in the 14th century

Browse Nearby Words

Cite this Entry

“Diaper.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diaper. Accessed 7 Jul. 2026.

Kids Definition

diaper

1 of 2 noun
1
: a usually white linen or cotton fabric woven in a pattern formed by the repetition of a simple design
also : the design on such cloth
2
: a garment for infants consisting of a piece of absorbent material drawn up between the legs and fastened about the waist

diaper

2 of 2 verb
1
: to decorate with diaper designs
2
: to put a diaper on
diaper a baby

Medical Definition

diaper

1 of 2 noun
: a basic garment especially for infants consisting of a folded cloth or other absorbent material drawn up between the legs and fastened about the waist

diaper

2 of 2 transitive verb
: to put on or change the diaper of (an infant)

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