auxiliary

(s) functioning in a supporting capacity
- the main library and its auxiliary branches
subsidiary, supplemental, supplementary,
(s) furnishing added support
- an ancillary pump
- an adjuvant discipline to forms of mysticism
- The mind and emotions are auxiliary to each other
adjunct, adjuvant, ancillary, appurtenant, accessory,

Nouns

(n) someone who acts as assistant aide,

Synonyms

subsidiary supplemental supplementary aide adjunct adjuvant ancillary appurtenant accessory

Words of close approximity

auxiliary airfield auxiliary boiler auxiliary cell auxiliary engine auxiliary equipment auxiliary operation auxiliary pump auxiliary research submarine auxiliary storage auxiliary verb