breastfeed

verb

breast·​feed ˈbrest-ˌfēd 

variants or breast-feed

breastfed or breast-fed; breastfeeding or breast-feeding; breastfeeds or breast-feeds

transitive verb

: to feed (a baby) from a mother's breast

intransitive verb

1

: to breastfeed a baby

… more women are breastfeeding than ever before …

—Lauren Sandler

2

of a baby : to feed oneself by sucking milk from a mother's breast

breastfed adjective

or breast-fed

breastfed babies

breastfeeder noun

or breast-feeder

breastfeeding noun

or breast-feeding

Synonyms of breastfeed

• nurse
• suckle

Examples of breastfeed in a Sentence

believes that all women should breast-feed their babies

Recent Examples on the Web

Thus, this medication would be considered safe for breastfeeding. — Camille Hoffman, The Conversation, 7 July 2026

In the post, Clements shared a candid photo of George breastfeeding her baby boy, alongside shots of her trip through the French countryside and some photos of her older children. — Charlotte Phillipp, PEOPLE, 6 July 2026

Paintings and sculptures of Mary breastfeeding her baby Jesus are common art-historical motifs, particularly in Europe. — Devorah Lauter, ARTnews.com, 6 July 2026

The Alias actress later reposted the photos of her kids, including the snap of her breastfeeding her newborn. — Shania Russell, Entertainment Weekly, 6 July 2026

Word History

First Known Use

1869, in the meaning defined at transitive sense

Kids Definition

breast-feed

verb

ˈbrest-ˌfēd

breast-fed

-ˌfed

; breast-feeding

: to feed a baby from a mother's breast

Medical Definition

breastfeed

verb

breast·​feed

variants or breast-feed

ˈbrest-ˌfēd

breastfed or breast-fed; breastfeeding or breast-feeding; breastfeeds or breast-feeds

transitive verb

: to feed (a baby) from a mother's breast

intransitive verb

1

: to breastfeed a baby

2

of a baby : to feed oneself by sucking milk from a mother's breast

breastfed adjective

or breast-fed

breastfed babies

breastfeeder noun

or breast-feeder

This class for first-time breastfeeders will be from 6:30 to 9:30 p.m.

—The Reno (Nevada) Gazette-Journal

On average, infants who were exclusive breast-feeders continued to drink more as they got older …

—The Philadelphia Inquirer

breastfeeding noun

or breast-feeding