Standard Lemma guide

sensor

noun · 2 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: /ˈsɛn.sə/
  • US: /ˈsɛn.sɚ/
  • US: Recorded audio is listed in the source snapshot.
  • homophone: censer
  • homophone: censor
  • homophone: senser
  • rhymes with -ɛnsə(ɹ)
  • CMU ARPABET: S EH1 N S ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A device or organ that detects certain external stimuli and responds in a distinctive manner.

Definition source: English Wiktionary via Wiktextract

Examples

  • The smoke sensor triggered the alarm.
  • Modern phones contain a light sensor that adjusts brightness.
  • A motion sensor detected movement in the empty room.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: detector, sensing element

Antonyms: none provided

Broader terms: device

Narrower terms: metal detector, mine detector, photoelectric cell, photoconductive cell, photocell, electric eye, magic eye, trace detector

History

Etymology

Originated 1925–30, formed as a Latin loanword from sentiō (“to feel”) + -tor (“-er”). By surface analysis, sense + -or.

Across languages

Translations

42 source translations are retained for this English entry.

  • Arabic: حَسَّاس (ḥassās) — device or organ that detects certain external stimuli
  • Arabic: جِهَازُ اِسْتِشْعَار (jihāzu istišʕār) — device or organ that detects certain external stimuli
  • Basque: sentsore — device or organ that detects certain external stimuli
  • Bulgarian: се́нзор (sénzor) — device or organ that detects certain external stimuli
  • Bulgarian: датчик (datčik) — device or organ that detects certain external stimuli
  • Chinese Mandarin: 傳感器 /传感器 (chuángǎnqì) — device or organ that detects certain external stimuli
  • Danish: føler — device or organ that detects certain external stimuli
  • Danish: sensor — device or organ that detects certain external stimuli
  • Esperanto: sensilo — device or organ that detects certain external stimuli
  • Estonian: andur — device or organ that detects certain external stimuli
  • Finnish: anturi — device or organ that detects certain external stimuli
  • Finnish: tunnistin — device or organ that detects certain external stimuli
  • Finnish: aistin — device or organ that detects certain external stimuli
  • Finnish: tuntoelin — device or organ that detects certain external stimuli
  • Finnish: sensori — device or organ that detects certain external stimuli
  • French: détecteur — device or organ that detects certain external stimuli
  • French: capteur — device or organ that detects certain external stimuli
  • German: Sensor — device or organ that detects certain external stimuli
  • Hungarian: érzékelő — device or organ that detects certain external stimuli
  • Irish: braiteoir — device or organ that detects certain external stimuli
  • Italian: sensore — device or organ that detects certain external stimuli
  • Japanese: センサー (sensā) — device or organ that detects certain external stimuli
  • Japanese: センサ (sensa) — device or organ that detects certain external stimuli
  • Kazakh: бергіш (bergış) — device or organ that detects certain external stimuli
  • Korean: 센서 (senseo) — device or organ that detects certain external stimuli
  • Macedonian: сетилник (setilnik) — device or organ that detects certain external stimuli
  • Māori: paerongo — device or organ that detects certain external stimuli
  • Māori: pūoko — device or organ that detects certain external stimuli
  • Norwegian Bokmål: sensor — device or organ that detects certain external stimuli
  • Norwegian Nynorsk: sensor — device or organ that detects certain external stimuli
  • Polish: sensor — device or organ that detects certain external stimuli
  • Portuguese: sensor — device or organ that detects certain external stimuli
  • Romanian: senzor — device or organ that detects certain external stimuli
  • Russian: се́нсор (sɛ́nsor) — device or organ that detects certain external stimuli
  • Serbo-Croatian: osjetnik — device or organ that detects certain external stimuli
  • Serbo-Croatian: osjetilo — device or organ that detects certain external stimuli
  • Spanish: sensor — device or organ that detects certain external stimuli
  • Swedish: sensor — device or organ that detects certain external stimuli
  • Turkish: duyarga — device or organ that detects certain external stimuli
  • Turkish: sensör — device or organ that detects certain external stimuli
  • Ukrainian: се́нсор (sénsor) — device or organ that detects certain external stimuli
  • Vietnamese: cảm biến — device or organ that detects certain external stimuli
Real reading context

sensor in complete knowledge articles