1. a welding process using a metal inert gas (MIG welder); also called gas metal arc welding (GMAW).
Usage: technical; often used attributively (e.g., 'mig welder', 'mig welding')
2. a Russian fighter aircraft, especially of the MiG series (e.g., MiG-29).
Usage: informal; often capitalized as 'MiG'

Examples

• The shop uses mig welding for most of its steel fabrication work.
• He learned to operate a mig welder during his apprenticeship.
• The aircraft hangar housed several vintage mig fighters from the Cold War era.
• Mig welding is faster and easier to learn than stick welding.
• The pilot flew a mig jet during the military exercise.