subsidiary
/sʌbˈsɪ.di.əɹ.i/
noun
Meaning
A company owned by a parent company or a holding company, also called daughter company or sister company.
A subordinate theme.
One who aids or supplies; an assistant.
adjective
Meaning
Auxiliary or supplemental.
Secondary or subordinate.
"a subsidiary stream"
Of, or relating to a subsidy.
"subsidiary payments to an ally"