Standard Lemma guide

investigate

verb · 5 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.

  • /ɪnˈvɛs.tə.ɡeɪt/
  • General-American: [ɪnˈvɛs.tɪ.ɡeɪ̯t]
  • General-American: [ɪnˈvɛs.tə.ɡeɪ̯ʔ]
  • General-American: Recorded audio is listed in the source snapshot.
  • General-American: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: IH2 N V EH1 S T AH0 G EY2 T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

verb

Meaning 1

To inquire into or study in order to ascertain facts or information.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • to investigate the causes of natural phenomena
  • He was asked to investigate a robbery.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To examine, look into, or scrutinize in order to discover something hidden or secret.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • to investigate an unsolved murder

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To conduct an inquiry or examination.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

conduct an inquiry or investigation of

Definition source: Princeton WordNet 3.0

Examples

  • The district attorney's office investigated reports of possible irregularities
  • inquire into the disappearance of the rich old lady

Meaning relationships

Synonyms: inquire, enquire

Antonyms: none provided

Broader terms: probe, examine

Narrower terms: spy

5

verb

Meaning 5

investigate scientifically

Definition source: Princeton WordNet 3.0

Examples

  • Let's investigate the syntax of Chinese

Meaning relationships

Synonyms: look into

Antonyms: none provided

Broader terms: analyze, analyse, study, examine, canvass, canvas

Narrower terms: research, search, explore, probe, examine, experiment

History

Etymology

Recorded since circa 1510, a back-formation from investigation on the basis of -ate (verb-forming suffix), from Latin investīgātiō (“a searching into”), from investīgātus, the perfect passive participle of investīgō, equivalent to in- + vestigate. Displaced native Old English undersēċan (literally “to search under or between”).

Across languages

Translations

145 source translations are retained for this English entry.

  • Bulgarian: изследвам (izsledvam) — to inquire into, study
  • Bulgarian: проучвам (proučvam) — to inquire into, study
  • Catalan: investigar — to inquire into, study
  • Chinese Mandarin: 調查 /调查 (diàochá) — to inquire into, study
  • Czech: zkoumat — to inquire into, study
  • Danish: undersøge — to inquire into, study
  • Dutch: onderzoeken — to inquire into, study
  • Dutch: bekijken — to inquire into, study
  • Dutch: bestuderen — to inquire into, study
  • Finnish: tutkia — to inquire into, study
  • French: étudier — to inquire into, study
  • Galician: investigar — to inquire into, study
  • German: untersuchen — to inquire into, study
  • German: erforschen — to inquire into, study
  • German: recherchieren — to inquire into, study
  • Gothic: 𐌰𐌽𐌳𐌷𐍂𐌿𐍃𐌺𐌰𐌽 (andhruskan) — to inquire into, study
  • Greek: ερευνώ (erevnó) — to inquire into, study
  • Hindi: शोध करना (śodh karnā) — to inquire into, study
  • Hungarian: megvizsgál — to inquire into, study
  • Hungarian: vizsgál — to inquire into, study
  • Hungarian: tanulmányoz — to inquire into, study
  • Hungarian: kutat — to inquire into, study
  • Indonesian: mengkaji — to inquire into, study
  • Indonesian: menyelidiki — to inquire into, study
  • Italian: investigare — to inquire into, study
  • Italian: indagare — to inquire into, study
  • Japanese: 調べる (shiraberu) — to inquire into, study
  • Japanese: 調査する (chōsa suru) — to inquire into, study
  • Korean: 조사하다 (josahada) — to inquire into, study
  • Latin: aspicio — to inquire into, study
  • Latin: investigo — to inquire into, study
  • Latin: indago — to inquire into, study
  • Latin: vestigo — to inquire into, study
  • Malay: siasat — to inquire into, study
  • Maltese: investiga — to inquire into, study
  • Māori: whakatewhatewha — to inquire into, study
  • Māori: tūhura — to inquire into, study
  • Māori: mātai — to inquire into, study
  • Māori: mātaki — to inquire into, study
  • Māori: rangahau — to inquire into, study
  • Māori: uiui — to inquire into, study
  • Māori: ārohi — to inquire into, study
  • Norwegian Bokmål: undersøke — to inquire into, study
  • Occitan: investigar — to inquire into, study
  • Polish: prowadzić dochodzenie — to inquire into, study
  • Portuguese: investigar — to inquire into, study
  • Romanian: investiga — to inquire into, study
  • Russian: иссле́довать (isslédovatʹ) — to inquire into, study
  • Russian: рассле́довать (rasslédovatʹ) — to inquire into, study
  • Scottish Gaelic: rannsaich — to inquire into, study
  • Spanish: investigar — to inquire into, study
  • Spanish: pesquisar — to inquire into, study
  • Spanish: indagar — to inquire into, study
  • Swahili: -chunguza — to inquire into, study
  • Swedish: undersöka — to inquire into, study
  • Telugu: పరిశీలించు (pariśīliñcu) — to inquire into, study
  • Thai: สืบ (sʉ̀ʉp) — to inquire into, study
  • Thai: สืบสวน (sʉ̀ʉp-sǔuan) — to inquire into, study
  • Thai: สํารวจ (sǎm-rùuat) — to inquire into, study
  • Thai: สืบสาว — to inquire into, study
  • Ottoman Turkish: كشف ایتمك (keşf etmek) — to inquire into, study
  • Ukrainian: дослі́джувати (doslídžuvaty) — to inquire into, study
  • Ukrainian: досліди́ти (doslidýty) — to inquire into, study
  • Vietnamese: điều tra — to inquire into, study
  • Walloon: studyî — to inquire into, study
  • Basque: aztertu — to examine
  • Bulgarian: разследвам (razsledvam) — to examine
  • Catalan: investigar — to examine
  • Czech: pátrat — to examine
  • Czech: vyšetřovat — to examine
  • Czech: vyšetřit — to examine
  • Danish: undersøge — to examine
  • Danish: efterforske — to examine
  • Dutch: onderzoeken — to examine
  • Dutch: een onderzoek instellen — to examine
  • Dutch: uitzoeken — to examine
  • Esperanto: enketi — to examine
  • Finnish: tutkia — to examine
  • French: enquêter — to examine
  • German: untersuchen — to examine
  • Greek: ερευνώ (erevnó) — to examine
  • Hindi: जाँचना (jā̃cnā) — to examine
  • Hindi: जाँच करना (jā̃c karnā) — to examine
  • Hungarian: kivizsgál — to examine
  • Indonesian: menyelidiki — to examine
  • Italian: investigare — to examine
  • Japanese: 調べる (shiraberu) — to examine
  • Japanese: 検査する (kensa suru) — to examine
  • Khmer: ពិរុទ្ធ (pi’rut) — to examine
  • Latin: aspicio — to examine
  • Latin: inquīrō — to examine
  • Malay: menyelidiki — to examine
  • Malay: mengkaji — to examine
  • Māori: whakatewhatewha — to examine
  • Māori: tūhura — to examine
  • Norwegian Bokmål: ettersøke — to examine
  • Occitan: investigar — to examine
  • Polish: badać — to examine
  • Polish: zbadać — to examine
  • Portuguese: investigar — to examine
  • Portuguese: examinar — to examine
  • Russian: рассле́довать (rasslédovatʹ) — to examine
  • Russian: изуча́ть (izučátʹ) — to examine
  • Russian: изучи́ть (izučítʹ) — to examine
  • Scottish Gaelic: rannsaich — to examine
  • Spanish: examinar — to examine
  • Spanish: investigar — to examine
  • Spanish: indagar — to examine
  • Swahili: -chunguza — to examine
  • Swedish: undersöka — to examine
  • Swedish: utreda — to examine
  • Telugu: పరిశీలించు (pariśīliñcu) — to examine
  • Thai: สืบสวน (sʉ̀ʉp-sǔuan) — to examine
  • Ottoman Turkish: كشف ایتمك (keşf etmek) — to examine
  • Ukrainian: розслі́дувати (rozslíduvaty) — to examine
  • Vietnamese: điều tra — to examine
  • Bulgarian: разследвам (razsledvam) — to conduct an inquiry or examination
  • Catalan: investigar — to conduct an inquiry or examination
  • Czech: vyšetřovat — to conduct an inquiry or examination
  • Danish: undersøge — to conduct an inquiry or examination
  • Danish: udrede — to conduct an inquiry or examination
  • Dutch: een onderzoek voeren — to conduct an inquiry or examination
  • Finnish: tutkia — to conduct an inquiry or examination
  • Finnish: selvittää — to conduct an inquiry or examination
  • French: enquêter — to conduct an inquiry or examination
  • German: ermitteln — to conduct an inquiry or examination
  • Hindi: जाँचना (jā̃cnā) — to conduct an inquiry or examination
  • Hindi: जाँच करना (jā̃c karnā) — to conduct an inquiry or examination
  • Hungarian: nyomoz — to conduct an inquiry or examination
  • Italian: investigare — to conduct an inquiry or examination
  • Italian: indagare — to conduct an inquiry or examination
  • Latin: aspicio — to conduct an inquiry or examination
  • Malay: mengkaji — to conduct an inquiry or examination
  • Navajo: naʼałkaah — to conduct an inquiry or examination
  • Occitan: investigar — to conduct an inquiry or examination
  • Portuguese: investigar — to conduct an inquiry or examination
  • Russian: рассле́довать (rasslédovatʹ) — to conduct an inquiry or examination
  • Scottish Gaelic: rannsaich — to conduct an inquiry or examination
  • Spanish: pesquisar — to conduct an inquiry or examination
  • Spanish: investigar — to conduct an inquiry or examination
  • Swahili: -chunguza — to conduct an inquiry or examination
  • Swedish: utreda — to conduct an inquiry or examination
  • Thai: ไต่สวน (dtài-sǔuan) — to conduct an inquiry or examination
  • Thai: สอบสวน (sɔ̀ɔp-sǔuan) — to conduct an inquiry or examination
  • Walloon: inketer — to conduct an inquiry or examination
Real reading context

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