| Word | Definitions | Synonyms |
|---|---|---|
| indigo | (adjective) having a color between blue and violet | - |
| (noun) a blue-violet color | - | |
| (noun) deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye | Synonyms: indigo plant, Indigofera tinctoria | |
| (noun) a blue dye obtained from plants or made synthetically | Synonyms: anil, indigotin |