Tonic

/ˈtɑ.nɪk/ adj, noun, verb

adj, noun, verb ·Common ·Middle school level

Meaning at a glance

  • Primary sense: A substance with medicinal properties intended to restore or invigorate.
  • Grammar: tonic is listed as adj, noun, verb.
  • Nearest alternatives: keynote, restorative, accented, accented.
  • Useful contrasts: clonic, atonic, vii.
  • Usage evidence: Let's qualify this gin with tonic water.

How to use "tonic"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "tonic" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "tonic" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "tonic" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "tonic" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "tonic" is acting as adj, noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "keynote" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "tonic", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    A substance with medicinal properties intended to restore or invigorate. uncountable, usually

    "We used to brew a tonic from a particular kind of root."

  2. 2
    The first note of a diatonic scale; the keynote.
  3. 3
    a medicine that strengthens and invigorates wordnet
  4. 4
    Tonic water. uncountable, usually
  5. 5
    The triad built on the tonic note.
Show 6 more definitions
  1. 6
    (music) the first note of a diatonic scale wordnet
  2. 7
    Any of various carbonated, non-alcoholic beverages; soda pop. US, dated, uncountable, usually
  3. 8
    A tonic element or letter; a vowel or a diphthong.
  4. 9
    a sweet drink containing carbonated water and flavoring wordnet
  5. 10
    Someone or something that revitalises or reinvigorates. figuratively, uncountable, usually

    "Charlie ain't no Nazi / She likes to wear her leather boots / 'Cause it's exciting for the veterans / And it's a tonic for the troops."

  6. 11
    lime- or lemon-flavored carbonated water containing quinine wordnet
Verb
  1. 1
    To restore or invigorate. archaic

    "When all signs of effusion, dulness, pain, œgophony, and cough had disappeared he was dieted, stimulated, and tonicked."

Adjective
  1. 1
    Pertaining to tension, especially of the muscles.

    "Out in front and across the street, Doc noted half a dozen or so young men, not loitering or doing substances but poised and tonic, as if waiting for some standing order to take effect."

  2. 2
    Pertaining to or based upon the first note of a diatonic scale. not-comparable
  3. 3
    Restorative; curative; or invigorating.

    "The arrival of the new members had a tonic effect on the team."

  4. 4
    Pertaining to the accent or stress in a word or in speech. not-comparable
  5. 5
    In a state of continuous unremitting action.

    "Peter Redgrave (2007) Basal ganglia. Scholarpedia, 2(6):1825. GABAergic neurones in the basal ganglia output nuclei have high tonic firing rates (40-80 Hz)."

Show 1 more definition
  1. 6
    Of or relating to tones or sounds; specifically (phonetics, dated) being or relating to a speech sound made with tone unmixed and undimmed by obstruction, i.e. a vowel or diphthong. not-comparable
Adjective
  1. 1
    imparting vitality and energy wordnet
  2. 2
    (used of syllables) bearing the principle stress, usually accompanied by a change in pitch wordnet
  3. 3
    relating to or being the keynote of a major or minor scale wordnet
  4. 4
    employing variations in pitch to distinguish meanings of otherwise similar words wordnet
  5. 5
    of or relating to or producing normal tone or tonus in muscles or tissue wordnet

Example

"Let's qualify this gin with tonic water."

Common questions

What does "tonic" mean?

A substance with medicinal properties intended to restore or invigorate.

What is a synonym for "tonic"?

Common synonyms include: keynote, restorative, accented, accented, accented syllable, activating.

How do you use "tonic" in a sentence?

Let's qualify this gin with tonic water.

How do you pronounce "tonic"?

Pronounced /ˈtɑ.nɪk/.

Etymology

Etymology 1

From Ancient Greek τονικός (tonikós), from τόνος (tónos). 17th century writers believed health to be derived from firmly stretched muscles, thus tonic; the extension of tonic medicine appeared in the late 18th century. By surface analysis, ton(e) + -ic.

Etymology 2

From tone + -ic.

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