pacifier
Translation
dummy, pacifier, peacemaker
Examples
The baby stopped crying after getting his pacifier.
The baby stopped crying after getting his dummy.
He acted as a pacifier between the two angry friends.
He acted as a pacifier between the two angry friends.
Grammar Patterns
a/the pacifier a rubber nipple for a baby to suck on The baby stopped crying after getting his pacifier.
((sb.)) as a pacifier a person who brings peace He acted as a pacifier between the two angry friends.
Similar Words
Synonyms (object): dummy (UK), binky; Synonyms (person): peacemaker, mediator
Etymology
From the verb 'pacify' (to calm down) plus the agent suffix '-er', denoting a person or thing that does something.
Memory Tips
A pacifier is something that 'pacifies' (calms) a baby. Note that 'dummy' is more common in British English.