| Word | Definitions | Synonyms |
|---|---|---|
| auxiliary | (adjective) functioning in a supporting capacity | Synonyms: subsidiary, supplemental, supplementary |
| (adjective) furnishing added support | Synonyms: accessory, adjunct, adjuvant, ancillary, appurtenant | |
| (noun) someone who acts as assistant | Synonyms: aide | |
| auxin | (noun) a plant hormone that promotes root formation and bud growth | - |
| auxinic | (adjective) relating to or containing auxins | - |