Definitions

1. noun

a drink containing a stimulating or medicinal ingredient, especially quinine, used to treat malaria or to improve health and well-being

“She drank a tonic to help her recover from the flu.”

2. noun

a component or a feature that adds a certain quality or appeal to something

“The scenic views were the tonic that made the long hike worthwhile.”

3. adjective

relating to or having a soothing or invigorating effect

“The tonic color of the painting was a calming influence on the viewer.”

4. verb

to make something more interesting or lively

“The new music was going to tonic the party and get everyone dancing.”

5. verb

to treat or cure something with a tonic

“The doctor toniced the patient with a shot of quinine.”