Standard Lemma guide

infect

adj · verb · 9 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.

  • /ɪnˈfɛkt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛkt
  • /ˈɪnfɛkt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ɪnfɛkt
  • CMU ARPABET: IH2 N F EH1 K T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Infected.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, obsolete

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Representing an action not yet completed.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, rare

Topics: grammar, human-sciences, linguistics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To bring (the body or part of it) into contact with a substance that causes illness (a pathogen), so that the pathogen begins to act on the body; (of a pathogen) to come into contact with (a body or body part) and begin to act on it.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • Not everyone will be infected when an epidemic strikes.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To contaminate (an object or substance) with a pathogen.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To make somebody enthusiastic about one's own passion, or to communicate a feeling to others, or a feeling communicating itself to others.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • Her passion for dancing has infected me.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

contaminate with a disease or microorganism

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: taint

Antonyms: disinfect

Broader terms: pollute, foul, contaminate

Narrower terms: superinfect, smut

7

verb

Meaning 7

communicate a disease to

Definition source: Princeton WordNet 3.0

Examples

  • Your children have infected you with this head cold

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: give

Narrower terms: canker

8

verb

Meaning 8

affect in a contagious way

Definition source: Princeton WordNet 3.0

Examples

  • His laughter infects everyone who is in the same room

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: affect, impress, move, strike

9

verb

Meaning 9

corrupt with ideas or an ideology

Definition source: Princeton WordNet 3.0

Examples

  • society was infected by racism

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: corrupt, pervert, subvert, demoralize, demoralise, debauch, debase, profane, vitiate, deprave, misdirect

History

Etymology

From Middle French infect, from Latin infectus, perfect passive participle of inficiō (“dye, taint”).

Borrowed from Latin īnfectus, equivalent to in- (“not”) + factus, perfect passive participle of faciō (“to do, make”).

Across languages

Translations

87 source translations are retained for this English entry.

  • Afrikaans: aansteek — to bring into contact with a substance that causes illness
  • Arabic: أَعْدَى (ʔaʕdā) — to bring into contact with a substance that causes illness
  • Asturian: infestar — to bring into contact with a substance that causes illness
  • Asturian: contaxar — to bring into contact with a substance that causes illness
  • Bulgarian: заразявам (zarazjavam) — to bring into contact with a substance that causes illness
  • Catalan: infectar — to bring into contact with a substance that causes illness
  • Catalan: contagiar — to bring into contact with a substance that causes illness
  • Chinese Mandarin: 傳染 /传染 (chuánrǎn) — to bring into contact with a substance that causes illness
  • Chinese Mandarin: 感染 (gǎnrǎn) — to bring into contact with a substance that causes illness
  • Choctaw: abekʋchi — to bring into contact with a substance that causes illness
  • Czech: nakazit — to bring into contact with a substance that causes illness
  • Czech: infikovat — to bring into contact with a substance that causes illness
  • Danish: smitte — to bring into contact with a substance that causes illness
  • Dutch: infecteren — to bring into contact with a substance that causes illness
  • Dutch: besmetten — to bring into contact with a substance that causes illness
  • Esperanto: infekti — to bring into contact with a substance that causes illness
  • Finnish: tartuttaa — to bring into contact with a substance that causes illness
  • French: infecter — to bring into contact with a substance that causes illness
  • Galician: infectar — to bring into contact with a substance that causes illness
  • Georgian: ინფიცირება (inpicireba) — to bring into contact with a substance that causes illness
  • Georgian: გადადება (gadadeba) — to bring into contact with a substance that causes illness
  • Georgian: დასნებოვნება (dasnebovneba) — to bring into contact with a substance that causes illness
  • Georgian: დასენიანება (dasenianeba) — to bring into contact with a substance that causes illness
  • German: anstecken — to bring into contact with a substance that causes illness
  • German: infizieren — to bring into contact with a substance that causes illness
  • Ancient Greek: ἀναπίμπλημι (anapímplēmi) — to bring into contact with a substance that causes illness
  • Hungarian: fertőz — to bring into contact with a substance that causes illness
  • Hungarian: megfertőz — to bring into contact with a substance that causes illness
  • Ido: infektar — to bring into contact with a substance that causes illness
  • Irish: galraigh — to bring into contact with a substance that causes illness
  • Irish: ionfhabhtaigh — to bring into contact with a substance that causes illness
  • Italian: contagiare — to bring into contact with a substance that causes illness
  • Italian: infettare — to bring into contact with a substance that causes illness
  • Japanese: 感染させる (kansen saseru) — to bring into contact with a substance that causes illness
  • Khmer: ឆ្លង (chlɑɑng) — to bring into contact with a substance that causes illness
  • Latvian: inficēt — to bring into contact with a substance that causes illness
  • Lithuanian: užkrėsti — to bring into contact with a substance that causes illness
  • Malay: jangkit — to bring into contact with a substance that causes illness
  • Māori: whakapoke — to bring into contact with a substance that causes illness
  • Norman: înfecter — to bring into contact with a substance that causes illness
  • Norwegian Nynorsk: smitta — to bring into contact with a substance that causes illness
  • Occitan: infectar — to bring into contact with a substance that causes illness
  • Polish: zakażać — to bring into contact with a substance that causes illness
  • Polish: zakazić — to bring into contact with a substance that causes illness
  • Polish: zarażać — to bring into contact with a substance that causes illness
  • Polish: zarazić — to bring into contact with a substance that causes illness
  • Portuguese: infectar — to bring into contact with a substance that causes illness
  • Portuguese: contagiar — to bring into contact with a substance that causes illness
  • Quechua: qatiy — to bring into contact with a substance that causes illness
  • Romanian: infecta — to bring into contact with a substance that causes illness
  • Romanian: contamina — to bring into contact with a substance that causes illness
  • Russian: заража́ть (zaražátʹ) — to bring into contact with a substance that causes illness
  • Russian: зарази́ть (zarazítʹ) — to bring into contact with a substance that causes illness
  • Russian: инфици́ровать (inficírovatʹ) — to bring into contact with a substance that causes illness
  • Slovene: okužiti — to bring into contact with a substance that causes illness
  • Spanish: infectar — to bring into contact with a substance that causes illness
  • Spanish: contagiar — to bring into contact with a substance that causes illness
  • Spanish: inficionar — to bring into contact with a substance that causes illness
  • Swedish: smitta — to bring into contact with a substance that causes illness
  • Swedish: infektera — to bring into contact with a substance that causes illness
  • Tamil: தொற்று (toṟṟu) — to bring into contact with a substance that causes illness
  • Thai: ติดเชื้อ (dtìt-chʉ́ʉa) — to bring into contact with a substance that causes illness
  • Tibetan: རྣག་བསགས (rnag bsags) — to bring into contact with a substance that causes illness
  • Vietnamese: nhiễm — to bring into contact with a substance that causes illness
  • Vietnamese: lây — to bring into contact with a substance that causes illness
  • Volapük: näfätön — to bring into contact with a substance that causes illness
  • Bulgarian: заразявам (zarazjavam) — to make somebody enthusiastic about one's own passion
  • Chinese Mandarin: 感染 (gǎnrǎn) — to make somebody enthusiastic about one's own passion
  • Dutch: infecteren — to make somebody enthusiastic about one's own passion
  • Finnish: tartuttaa — to make somebody enthusiastic about one's own passion
  • French: infecter — to make somebody enthusiastic about one's own passion
  • Georgian: გადადება (gadadeba) — to make somebody enthusiastic about one's own passion
  • Georgian: გადაცემა (gadacema) — to make somebody enthusiastic about one's own passion
  • Georgian: გადასდებს (gadasdebs) — to make somebody enthusiastic about one's own passion
  • Georgian: გადასცემს (gadascems) — to make somebody enthusiastic about one's own passion
  • German: anstecken — to make somebody enthusiastic about one's own passion
  • German: infizieren — to make somebody enthusiastic about one's own passion
  • Hungarian: megfertőz — to make somebody enthusiastic about one's own passion
  • Portuguese: contagiar — to make somebody enthusiastic about one's own passion
  • Romanian: contagia — to make somebody enthusiastic about one's own passion
  • Russian: заража́ть (zaražátʹ) — to make somebody enthusiastic about one's own passion
  • Russian: зарази́ть (zarazítʹ) — to make somebody enthusiastic about one's own passion
  • Slovene: okužiti — to make somebody enthusiastic about one's own passion
  • Spanish: contagiar — to make somebody enthusiastic about one's own passion
  • Spanish: alborotar — to make somebody enthusiastic about one's own passion
  • Swedish: smitta — to make somebody enthusiastic about one's own passion
  • Vietnamese: lan truyền — to make somebody enthusiastic about one's own passion