Definitions
measuring instrument for indicating speed of rotation
Used in a sentence
“I have a rorty gal, also a knowing pal, / And merrily together we jog on, / I doesn't care a flatch, as long as I've a tach, / Some pannum for my chest, and a tog on.”
“wide-complex tach”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“RPM gauge”4 letters
02“Rev counter”4 letters
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