Standard Lemma guide

trojan

adj · noun · verb · 16 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.

  • UK: /ˈtɹəʊd͡ʒən/
  • US: /ˈtɹoʊd͡ʒən/
  • US: Recorded audio is listed in the source snapshot.
  • Received-Pronunciation: /ˈtɹəʊd͡ʒən/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Canada, General-American: /ˈtɹoʊd͡ʒən/
  • Australian: /ˈtɹəʉd͡ʒən/
  • New-Zealand: /ˈtɹɐʉd͡ʒən/
  • CMU ARPABET: T R OW1 JH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Describing a satellite (moon or minor planet) that shares an orbit with another

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of, or relating to, the famed city of Troy or its inhabitants.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Involving great strength or endurance.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Of, or relating to, a Trojan point.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: astrophysics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

Malicious but disguised as legitimate

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: computer security

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Malware that appears to perform or actually performs a desired task for a user while performing a harmful task without the user's knowledge or consent.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A native or inhabitant of the ancient city of Troy.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A student (especially an athlete) of the University of Southern California.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A Trojan asteroid.

Definition source: English Wiktionary via Wiktextract

Topics: astrophysics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

An object residing at a Trojan point.

Definition source: English Wiktionary via Wiktextract

Topics: astrophysics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

Ellipsis of Trojan horse.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, ellipsis

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

noun

Meaning 12

One who shows great pluck, endurance, strength, etc.

Definition source: English Wiktionary via Wiktextract

Examples

  • to study like a Trojan

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

verb

Meaning 13

To infect (a system) with a trojan.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective

Meaning 14

of or relating to the ancient city of Troy or its inhabitants

Definition source: Princeton WordNet 3.0

Examples

  • Trojan cities

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

noun

Meaning 15

a program that appears desirable but actually contains something harmful

Definition source: Princeton WordNet 3.0

Examples

  • the contents of a trojan can be a virus or a worm
  • when he downloaded the free game it turned out to be a trojan horse

Meaning relationships

Synonyms: trojan horse

Antonyms: none provided

Broader terms: malevolent program

16

noun

Meaning 16

a native of ancient Troy

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Dardan, Dardanian

Antonyms: none provided

Broader terms: Asian, Asiatic

History

Etymology

From Trojan horse.

From old forms Troyan, Troian, Middle English Troiā̆n, from Old English Trōiān, from Latin Troiānus, from Troia (“Troy”) + -ānus, from Ancient Greek Τροίᾱ (Troíā).

Across languages

Translations

81 source translations are retained for this English entry.

  • Finnish: troijalainen — celestial object sharing an orbit
  • French: troyen — celestial object sharing an orbit
  • Catalan: troià — relating to the city Troy
  • Czech: trojský — relating to the city Troy
  • Danish: trojansk — relating to the city Troy
  • Dutch: Trojaans — relating to the city Troy
  • Finnish: troijalainen — relating to the city Troy
  • French: troyen — relating to the city Troy
  • Galician: troiano — relating to the city Troy
  • German: trojanisch — relating to the city Troy
  • Ancient Greek: Τρωϊκός (Trōïkós) — relating to the city Troy
  • Ancient Greek: Τρώϊος (Trṓïos) — relating to the city Troy
  • Hungarian: trójai — relating to the city Troy
  • Icelandic: tróverskur — relating to the city Troy
  • Icelandic: trójanskur — relating to the city Troy
  • Norwegian Bokmål: trojansk — relating to the city Troy
  • Norwegian Nynorsk: trojansk — relating to the city Troy
  • Old English: Trōiesċ — relating to the city Troy
  • Old English: Trōisċ — relating to the city Troy
  • Old English: Trōiānisċ — relating to the city Troy
  • Polish: trojański — relating to the city Troy
  • Portuguese: troiano — relating to the city Troy
  • Russian: троя́нский (trojánskij) — relating to the city Troy
  • Spanish: troyano — relating to the city Troy
  • Swedish: trojansk — relating to the city Troy
  • Ukrainian: троя́нський (trojánsʹkyj) — relating to the city Troy
  • Ukrainian: троя́нська (trojánsʹka) — relating to the city Troy
  • Finnish: troijalainen — relating to a Trojan point
  • French: troyen — relating to a Trojan point
  • Finnish: troijalainen — relating to a malware
  • Spanish: troyano — relating to a malware
  • Swedish: trojansk — relating to a malware
  • Finnish: troijalainen — malware
  • French: cheval de Troie — malware
  • French: trojan — malware
  • German: Trojaner — malware
  • Polish: koń trojański — malware
  • Polish: trojan — malware
  • Russian: троя́н (troján) — malware
  • Sicilian: trojan — malware
  • Sicilian: trujanu — malware
  • Catalan: troià — person from Troy
  • Catalan: troiana — person from Troy
  • Czech: Trójan — person from Troy
  • Czech: Trójanka — person from Troy
  • Danish: trojaner — person from Troy
  • Dutch: Trojaan — person from Troy
  • Esperanto: trojano — person from Troy
  • Esperanto: trojanino — person from Troy
  • Finnish: troijalainen — person from Troy
  • French: Troyen — person from Troy
  • French: Troyenne — person from Troy
  • Galician: troiano — person from Troy
  • Galician: troiana — person from Troy
  • German: Trojaner — person from Troy
  • German: Trojanerin — person from Troy
  • German: Troer — person from Troy
  • German: Troerin — person from Troy
  • Ancient Greek: Τρῶες (Trôes) — person from Troy
  • Ancient Greek: Τρώϊος (Trṓïos) — person from Troy
  • Ancient Greek: Τρωϊάδες (Trōïádes) — person from Troy
  • Hungarian: trójai — person from Troy
  • Icelandic: Tróverji — person from Troy
  • Icelandic: Trójumaður — person from Troy
  • Macedonian: Тројанец (Trojanec) — person from Troy
  • Macedonian: Тројанка (Trojanka) — person from Troy
  • Norwegian Bokmål: trojaner — person from Troy
  • Norwegian Nynorsk: trojanar — person from Troy
  • Portuguese: troiano — person from Troy
  • Portuguese: troiana — person from Troy
  • Russian: троя́нец (trojánec) — person from Troy
  • Russian: троя́нка (trojánka) — person from Troy
  • Sicilian: trujanu — person from Troy
  • Spanish: troyano — person from Troy
  • Swedish: trojan — person from Troy
  • Swedish: trojanska — person from Troy
  • Ukrainian: троя́нець (trojánecʹ) — person from Troy
  • Ukrainian: троя́нка (trojánka) — person from Troy
  • Czech: Trójan — astronomical object residing at a Trojan point
  • Finnish: troijalainen — astronomical object residing at a Trojan point
  • French: troyen — astronomical object residing at a Trojan point
Real reading context

trojan in complete knowledge articles

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