Synonyms for auxiliary

Noun

1. aide, auxiliary, assistant, helper, help, supporter

usage: someone who acts as assistant

Adjective

1. auxiliary, subsidiary, supplemental, supplementary, secondary (vs. primary)

usage: functioning in a subsidiary or supporting capacity; "the main library and its auxiliary branches"

2. accessory, adjunct, ancillary, adjuvant, appurtenant, auxiliary, subsidiary, supportive (vs. unsupportive)

usage: relating to something that is added but is not essential; "an ancillary pump"; "an adjuvant discipline to forms of mysticism"; "The mind and emotions are auxilliary to each other"