Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “tonic”

tonic

noun     /ˈtɒnɪk/
DRINK [C, U] (also tonic water,     ) a drink with bubbles in it that has a slightly bitter taste and is often added to alcoholic drinksSoft drinks
FEEL BETTER [no plural] something that makes you feel better: Spending time with Leo is always a tonic.Medicine in different forms
(Definition of tonic noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “tonic” in other dictionaries

Word of the Day

generous

willing to give money, help, kindness, etc., especially more than is usual or expected

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More