Word.ws English Dictionary

thumb blue

thumb blue noun: an indigo dye, in the form of small balls or lumps, used in the 19th century for dyeing linen etc.

Noun

thumb blue (uncountable)

  1. (historical, obsolete) An indigo dye, in the form of small balls or lumps, used in the 19th century for dyeing linen etc.

Questions about thumb blue

What does thumb blue mean?
Thumb blue means an indigo dye, in the form of small balls or lumps, used in the 19th century for dyeing linen etc.
What part of speech is thumb blue?
Thumb blue is a noun.

Words near thumb blue in the dictionary

  1. thuluth
  2. Thum
  3. thumb
  4. thumb a lift
  5. thumb a ride
  6. thumb blue
  7. thumb buster
  8. thumb down
  9. thumb drive
  10. thumb drives
  11. thumb fight

Source and license

Adapted from Wiktionary: thumb blue (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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