# tonic

/ˈtɑnɪk/ (US) · /tˈɒnɪk/ (UK)

Source: https://englishreference.com/word/tonic
Updated: 2026-08-08

## Senses

### 1. tonic water

noun · CEFR B1

a bitter, bubbly drink that people often mix with alcohol like gin.

For teachers: a carbonated soft drink containing quinine, which imparts a distinctive bitter flavour; frequently used as a mixer.

- He ordered a gin and tonic with a slice of lime.
- The bartender recommended a premium tonic to complement the botanical notes of the artisanal gin.

### 2. something that makes you feel better

noun · CEFR B2

something that makes you feel happier, stronger, or more energetic.

For teachers: a figurative or literal restorative agent that improves physical or emotional well-being.

- A walk in the fresh air was just the tonic she needed after a long day.
- The team's unexpected victory served as a much-needed tonic for the city's morale during the economic downturn.

### 3. the main note in music

noun · CEFR C1 · Technical

the first and most important note in a musical scale.

For teachers: the first degree of a major or minor scale, serving as the tonal centre and point of resolution for a composition.

- The song finally returned to the tonic, making the ending feel complete.
- The composer delayed the resolution to the tonic, creating a sense of tension that lasted throughout the entire bridge.

### 4. refreshing or strengthening

adjective · CEFR C1 · Literary

having the power to make you feel healthy and full of energy.

For teachers: possessing restorative or invigorating properties; relating to the restoration of normal tone to the body.

- The cool mountain air had a tonic effect on the tired hikers.
- The professor found the intellectual challenge of the debate to be quite tonic, revitalising his interest in the subject.

### 5. muscle tension

adjective · CEFR C2 · Technical

relating to the normal state of tension in your muscles.

For teachers: relating to or characterised by continuous muscular tension or contraction.

- The doctor checked the patient for a tonic muscle reaction.
- The patient exhibited a tonic seizure, characterised by a sudden stiffening of the limbs and loss of consciousness.

## Examples

- A long walk in the fresh air was the perfect tonic.
- After a stressful week at the office, a weekend trip to the coast proved to be a much-needed tonic for the whole family.
- While the patient initially requested a physical tonic to combat his fatigue, the doctor suggested that a change in environment might provide a more lasting psychological benefit.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.