tune up

phrasal verb·1 sense·particle up

Meanings

1

Adjust an engine or instrument so it works at its best

Why “up”? Filling to the top. Reaching the upper limit means finishing.

The mechanic tuned up the engine.
The mechanic adjusted the engine for best performance.
The pianist tuned up the old piano.
The pianist adjusted the old piano so it worked at its best.

Don't confuse with

tune uptune in

Tune up means adjust an engine or instrument so it works at its best. Tune in means begin watching or listening.

Test yourself

The mechanic tuned up the engine. What does it mean?

Nearby in the meaning map

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