Synonyms of auxiliary in English:

auxiliary


See definition of auxiliary

adjective

1‘an auxiliary power source’

SYNONYMS
additional, supplementary, supplemental, extra, reserve, backup, emergency, fallback, spare, substitute, other
subsidiary, accessory, adjunct

2‘auxiliary nursing staff’

SYNONYMS
ancillary, assistant, support, supporting, helping, assisting, aiding

noun

1‘a nursing auxiliary’

SYNONYMS
assistant, helper, aide