thumb blue

Questions

What does thumb blue mean?

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

How to pronounce thumb blue

1. Open the pronunciation page — Open the Speakur entry for “thumb blue”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “thumb blue”.
4. Repeat and practice — Say “thumb blue” aloud, matching stress and vowels until it feels natural.