The tonic effects of the exercise were noticeable.
Having a stimulating or invigorating effect.
The doctor recommended a tonic to help her recover.
A medicine or substance that increases energy or health.
The tonic of the scale is C in this piece.
The first note of a musical scale.
She ordered a tonic with her gin.
A drink that is refreshing or invigorating, often used in cocktails.
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