The word "Pairer" is often used to describe someone or something that matches two things together. However, if you're looking for some synonyms for the word "Pairer", there are several options that can be used interchangeably. These include "Matcher", which conveys the idea of putting two things together that go well together; "Connector", which implies the act of joining two things together; and "Linker", which suggests bringing together two things that would be unrelated without the aid of the "Pairer." Other synonyms include "Unifier," "Joiner," and "Mixer," all of which indicate the process of combining two things for a desired outcome.