Standard Lemma guide

ionize

verb · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • ī'-ə-nīz
  • /ˈaɪ.ə.naɪz/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AY1 AH0 N AY2 Z Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

verb

Meaning 1

To dissociate atoms or molecules into electrically charged species; to be thus dissociated.

Definition source: English Wiktionary via Wiktextract

Usage: physical

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

convert into ions

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ionise

Antonyms: none provided

Broader terms: change state, turn

3

verb

Meaning 3

become converted into ions

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ionise

Antonyms: none provided

Broader terms: change

History

Etymology

Etymology tree Proto-Indo-European *h1ey- Proto-Indo-European *h1éyti Proto-Hellenic *éimi Ancient Greek ἰόν (ión)der. English ion Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō)bor. Late Latin -izōder. Middle French -iserbor. Middle English -isen English -ize English ionize From ion + -ize.

Across languages

Translations

27 source translations are retained for this English entry.

  • Arabic: أَيَّنَ (ʔayyana) — to dissociate atoms or molecules into electrically charged species
  • Bulgarian: йонизиран (joniziran) — to dissociate atoms or molecules into electrically charged species
  • Catalan: ionitzar — to dissociate atoms or molecules into electrically charged species
  • Danish: ionisere — to dissociate atoms or molecules into electrically charged species
  • Esperanto: jonigi — to dissociate atoms or molecules into electrically charged species
  • Finnish: ionisoida — to dissociate atoms or molecules into electrically charged species
  • Finnish: ionisoitua — to dissociate atoms or molecules into electrically charged species
  • French: ioniser — to dissociate atoms or molecules into electrically charged species
  • German: ionisieren — to dissociate atoms or molecules into electrically charged species
  • Greek: ιονίζω (ionízo) — to dissociate atoms or molecules into electrically charged species
  • Hungarian: ionizál — to dissociate atoms or molecules into electrically charged species
  • Icelandic: jóna — to dissociate atoms or molecules into electrically charged species
  • Italian: ionizzare — to dissociate atoms or molecules into electrically charged species
  • Māori: whakakatote — to dissociate atoms or molecules into electrically charged species
  • Norwegian: ionisere — to dissociate atoms or molecules into electrically charged species
  • Polish: jonizować — to dissociate atoms or molecules into electrically charged species
  • Polish: zjonizować — to dissociate atoms or molecules into electrically charged species
  • Portuguese: ionizar — to dissociate atoms or molecules into electrically charged species
  • Romanian: ioniza — to dissociate atoms or molecules into electrically charged species
  • Russian: ионизи́ровать (ionizírovatʹ) — to dissociate atoms or molecules into electrically charged species
  • Russian: ионизова́ть (ionizovátʹ) — to dissociate atoms or molecules into electrically charged species
  • Spanish: ionizar — to dissociate atoms or molecules into electrically charged species
  • Swedish: jonisera — to dissociate atoms or molecules into electrically charged species
  • Tagalog: sadagipikin — to dissociate atoms or molecules into electrically charged species
  • Telugu: అయనీకరణం చెందు (ayanīkaraṇaṁ cendu) — to dissociate atoms or molecules into electrically charged species
  • Telugu: అయనీకరించు (ayanīkariñcu) — to dissociate atoms or molecules into electrically charged species
  • Ukrainian: іонізува́ти (ionizuváty) — to dissociate atoms or molecules into electrically charged species