IPA: /kəʊˈmænədʒə/
KK: /koʊˈmænədʒər/
A person who shares the responsibility of managing something with another person.
As a comanager, she worked closely with her partner to ensure the success of the project.
comanager → It is formed from "co-" (meaning together) and "manager" (from Old French *managier*, meaning to handle or direct). The word "comanager" refers to someone who manages together with another person.
Think of two people managing something "together" ('co-') — that's what a comanager does.