Pacifier

Origin

From pacify + -er.

Full definition of pacifier

Noun

1. Someone or something that pacifies. from 16th c.
2. (North America) A rubber or plastic device imitating a nipple that goes into a baby’s mouth, used to calm and quiet the baby. from 20th c.

Synonyms

• binky, piece, bo-bo, nookie United States
• dummy, comforter Britain, Australia, New Zealand
• soother Canada, Ireland