Definitions:

1. Short for Tachometer. NOUN
   • The needle on the tach jumped as he revved the engine.

Synonyms:

• rev counter
• rpm gauge
• tachometer

NearBy Words:

• tacheometer
• tachinidae
• tachistoscope
• tachogram
• tachograph
• tachometer
• tachycardia
• tachyglossidae
• tachyglossus
• tachygraphy
• tachylite
• tachymeter
• tachypleus