subsidiary
1. [ noun ] (work) someone subject to the authority or control of another
Synonyms: subordinate underling foot_soldier
Related terms: follower assistant man second_banana bottom_dog subdue
2. [ adjective ] functioning in a subsidiary or supporting capacity
Synonyms: supplemental supplementary auxiliary
Examples:

"the main library and its auxiliary branches"

Related terms: secondary
3. [ adjective ] relating to something that is added but is not essential
Synonyms: adjunct ancillary adjuvant appurtenant auxiliary accessory
Examples:

"an ancillary pump" "an adjuvant discipline to forms of mysticism" "The mind and emotions are auxilliary to each other"

Related terms: supportive
4. [ noun ] (business) a company that is completely controlled by another company
Synonyms: subsidiary_company
Related terms: company
Similar spelling:   subsidiarity
  subsidy
  subsidizer
  subsidiser
  subsidize
  subsidise
  subsiding
  subsidized
  subsidised
  subside
  subsidization
  subsidisation
  subsidence