Ion

/ˈaɪ.ɑn/ name, noun, phrase, slang

name, noun, phrase, slang ·Common ·High school level

Meaning at a glance

  • Primary sense: An atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.
  • Grammar: ion is listed as name, noun, phrase, slang.
  • Nearest alternatives: acid, acidity, agent, alkali.
  • Useful contrasts: dutch molecuul, neutral atom, spanish molécula.
  • Usage evidence: Suffixes, 1: "-ion" creates nouns that show the meaning of 'action, state, process, results,' and so on.

How to use "ion"

  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 "ion" 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 "ion" 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 "ion" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "ion" 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 "ion" is acting as name, noun, phrase, slang 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 "acid" 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 "ion", 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
    An atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.
  2. 2
    a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons wordnet
Phrase
  1. 1
    I don't. slang

    "ion know what 2 do"

Proper Noun
  1. 1
    Son of Creusa and Xuthus, and the ancestor of Ionian people. Greek
  2. 2
    A surname from Romanian.
  3. 3
    Ion of Chios, a Greek writer, dramatist, lyric poet and philosopher of the Pythagorean school

Antonyms

dutch molecuulneutral atomspanish moléculauncharged particle

Example

"Suffixes, 1: "-ion" creates nouns that show the meaning of 'action, state, process, results,' and so on."

Common questions

What does "ion" mean?

An atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.

What is a synonym for "ion"?

Common synonyms include: acid, acidity, agent, alkali, alkalinity, alloisomer.

How do you use "ion" in a sentence?

Suffixes, 1: "-ion" creates nouns that show the meaning of 'action, state, process, results,' and so on.

How do you pronounce "ion"?

Pronounced /ˈaɪ.ɑn/.

Etymology

Etymology 1

From the ending of anion and cation, which in turn is from Ancient Greek ἰόν (ión, “going”), neuter present participle of εἶμι (eîmi, “I go”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year.

Etymology 2

From a reduction of I don't.

Etymology 3

From Ancient Greek Ἴων (Íōn).

Etymology 4

Borrowed from Romanian Ion.

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