pacifier

noun

pac·​i·​fi·​er ˈpa-sə-ˌfī(-ə)r 

1

: one that pacifies

2

: a usually nipple-shaped device for babies to suck or bite on

Examples of pacifier in a Sentence

Recent Examples on the Web

The most disturbing tableau depicts Cassie as a baby, sucking on a pacifier and spreading her legs. —Rafaela Bassili, Vulture, 20 Apr. 2026

Cassie is trying to become social-media famous, suggestively flashing her all-American assets online in a variety of fetishy costumes (a puppy dog, a pacifier-sucking baby). —Naomi Fry, New Yorker, 18 Apr. 2026

Other shots showed them holding baby Delilah, who had a light blue bow in her hair and had a matching light blue pacifier in her mouth. —Kimberlee Speakman, PEOPLE, 17 Apr. 2026

They’re made of Thermoplastic Elastomers (TPE), the same stuff used in baby pacifiers, combs, and toothbrushes. —Andrew P. Collins, The Drive, 15 Apr. 2026

Word History

First Known Use

1533, in the meaning defined at sense 1

Rhymes for pacifier

• amplifier
• clarifier
• classifier
• gasifier
• magnifier
• modifier
• multiplier
• occupier
• purifier
• qualifier
• quantifier
• rectifier

Kids Definition

pacifier

noun

pac·​i·​fi·​er ˈpas-ə-ˌfī(-ə)r 

1

: one that pacifies

2

: a usually nipple-shaped device for babies to suck or bite on

Medical Definition

pacifier

noun

pac·​i·​fi·​er ˈpas-ə-ˌfī(-ə)r 

1

: a usually nipple-shaped device for babies to suck or bite on

2

: tranquilizer