Standard Lemma guide

ensure

verb · 4 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.

  • /ɪnˈʃɔː(ɹ)/ pour–poor merger
  • /ɪnˈʃʊə(ɹ)/ without the pour–poor merger
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ɪnˈʃʊɹ/
  • General-American: /ɪnˈʃɝ/
  • rhymes with -ɔː(ɹ)
  • rhymes with -ʊə(ɹ)
  • rhymes with -ɜː(ɹ)
  • CMU ARPABET: EH0 N SH UH1 R Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: IH0 N SH UH1 R Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

verb

Meaning 1

To make sure or certain of something (usually some future event or condition).

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

Examples

  • I use an alarm clock to ensure that I get up on time.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To make a pledge to (someone); to promise, guarantee (someone of something); to assure.

Definition source: English Wiktionary via Wiktextract

Usage: obsolete, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

be careful or certain to do something; make certain of something

Definition source: Princeton WordNet 3.0

Examples

  • He verified that the valves were closed
  • See that the curtains are closed
  • control the quality of the product

Meaning relationships

Synonyms: see, check, insure, see to it, control, ascertain, assure

Antonyms: none provided

Broader terms: verify

Narrower terms: proofread, proof, control, double-check, cross-check, cinch, card, spot-check, cover

4

verb

Meaning 4

make certain of

Definition source: Princeton WordNet 3.0

Examples

  • This nest egg will ensure a nice retirement for us
  • Preparation will guarantee success!

Meaning relationships

Synonyms: guarantee, insure, assure, secure

Antonyms: none provided

Narrower terms: doom, make

History

Etymology

From Middle English ensuren, from Anglo-Norman enseurer, from Old French seur (“sure”). Doublet of insure.

Across languages

Translations

59 source translations are retained for this English entry.

  • Azerbaijani: təmin etmək — make sure or certain
  • Basque: segurtatu — make sure or certain
  • Belarusian: упэўніцца (upewnicca) — make sure or certain
  • Belarusian: упэўнівацца (upewnivacca) — make sure or certain
  • Belarusian: пераканацца (pjerakanacca) — make sure or certain
  • Belarusian: пераконвацца (pjerakónvacca) — make sure or certain
  • Breton: asuri — make sure or certain
  • Bulgarian: осигурявам (osigurjavam) — make sure or certain
  • Bulgarian: осигуря́ (osigurjá) — make sure or certain
  • Chinese Mandarin: 確保 /确保 (quèbǎo) — make sure or certain
  • Czech: zajistit — make sure or certain
  • Dutch: garanderen — make sure or certain
  • Dutch: verzekeren — make sure or certain
  • Dutch: waarborgen — make sure or certain
  • Finnish: varmistaa — make sure or certain
  • French: s'assurer — make sure or certain
  • French: garantir — make sure or certain
  • French: assurer — make sure or certain
  • German: sicherstellen — make sure or certain
  • German: gewährleisten — make sure or certain
  • Haitian Creole: asire — make sure or certain
  • Hungarian: gondoskodik — make sure or certain
  • Hungarian: tesz róla — make sure or certain
  • Hungarian: gondja van rá — make sure or certain
  • Hungarian: biztosít — make sure or certain
  • Ido: certigar — make sure or certain
  • Italian: garantire — make sure or certain
  • Italian: assicurare — make sure or certain
  • Italian: fare in modo che — make sure or certain
  • : ᦁᦱᦙᦃᦱᧄᧈ (ʼaamẋaam1) — make sure or certain
  • Malayalam: ഉറപ്പാക്കൂ (uṟappākkū) — make sure or certain
  • Manx: shickyree — make sure or certain
  • Māori: whakatūturu — make sure or certain
  • Old English: lōcian — make sure or certain
  • Polish: zapewnić — make sure or certain
  • Polish: zapewniać — make sure or certain
  • Polish: upewnić — make sure or certain
  • Polish: upewniać — make sure or certain
  • Polish: utwierdzić — make sure or certain
  • Portuguese: garantir — make sure or certain
  • Portuguese: assegurar — make sure or certain
  • Romanian: asigura — make sure or certain
  • Russian: удостове́риться (udostovéritʹsja) — make sure or certain
  • Russian: убеди́ться (ubedítʹsja) — make sure or certain
  • Russian: страхова́ться (straxovátʹsja) — make sure or certain
  • Russian: подстрахова́ться (podstraxovátʹsja) — make sure or certain
  • Spanish: asegurarse — make sure or certain
  • Spanish: garantizarse — make sure or certain
  • Spanish: velar por — make sure or certain
  • Swedish: se till — make sure or certain
  • Swedish: säkerställa — make sure or certain
  • Turkish: sağlamak — make sure or certain
  • Turkish: garantiye almak — make sure or certain
  • Turkish: emin olmak — make sure or certain
  • Turkish: güvence vermek — make sure or certain
  • Ukrainian: забезпе́чувати (zabezpéčuvaty) — make sure or certain
  • Ukrainian: забезпе́чити (zabezpéčyty) — make sure or certain
  • Ukrainian: гарантува́ти (harantuváty) — make sure or certain
  • Welsh: sicrháu — make sure or certain
Real reading context

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