Standard Lemma guide

unionization

noun · 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.

  • /ˌjuːnjənaɪˈzeɪʃən/
  • /ʌnˌaɪənaɪˈzeɪʃən/
  • CMU ARPABET: Y UW2 N Y AH0 N AH0 Z EY1 SH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The act of forming a trade union.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Qualifier: labour

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: deunionization, disunification, disuniting

2

noun

Meaning 2

Synonym of deionization.

Definition source: English Wiktionary via Wiktextract

Usage: nonstandard, rare, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: deionization

Antonyms: none provided

3

noun

Meaning 3

act of forming labor unions

Definition source: Princeton WordNet 3.0

Examples

  • the issue underlying the strike was unionization

Meaning relationships

Synonyms: unionisation

Antonyms: none provided

Broader terms: constitution, establishment, formation, organization, organisation

History

Etymology

Etymology tree English union 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 Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English -ization English unionization From union + -ization.

Etymology tree Proto-Indo-European *h2ent- Proto-Indo-European *-s Proto-Indo-European *h2éntsder. Proto-Germanic *anda- Proto-West Germanic *anda- Old English and- Old English on- Middle English on- English un- 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 Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English ionization English unionization From un- + ionization.

Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: järjestäytyminen — act of forming a trade union
  • French: syndicalisation — act of forming a trade union
  • Portuguese: sindicalização — act of forming a trade union