marking blue

Questions

What does marking blue mean?

A dye used in metalworking, made by mixing methylated spirit with shellac and gentian violet, to aid in marking out rough parts for further machining.

How to pronounce marking blue

1. Open the pronunciation page — Open the Speakur entry for “marking 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 “marking blue”.
4. Repeat and practice — Say “marking blue” aloud, matching stress and vowels until it feels natural.