Standard Lemma guide

optics

noun · 7 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.

  • Received-Pronunciation: /ˈɒptɪks/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈɑptɪks/
  • CMU ARPABET: AA1 P T IH0 K S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

The physics of light and vision: basic optical science.

Definition source: English Wiktionary via Wiktextract

Usage: plural, singular

Topics: natural-sciences, physical-sciences, physics

Examples

  • a PhD in the optics of liquid crystals

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Technology that makes use of such physics: applied optical science; business lines making use of such technology.

Definition source: English Wiktionary via Wiktextract

Usage: plural, singular

Examples

  • defense R&D investments in both optics and electronics

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The light-related aspects of a device.

Definition source: English Wiktionary via Wiktextract

Usage: plural, singular

Examples

  • the optics of liquid crystals under certain laboratory conditions
  • The optics of this telescope are particularly good.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Perception, image, public relations, especially in politics.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively, plural, singular

Examples

  • Near-synonyms: appearances, spectacle, theatrics; choreography
  • His policy prescription was sound, but the optics were horrible.

Meaning relationships

Synonyms: appearances, spectacle, theatrics, choreography

Antonyms: none provided

5

noun

Meaning 5

plural of optic

Definition source: English Wiktionary via Wiktextract

Usage: form-of, plural

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

optical properties

Definition source: Princeton WordNet 3.0

Examples

  • the optics of a telescope

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: property

7

noun

Meaning 7

the branch of physics that studies the physical properties of light

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: physics, natural philosophy

Narrower terms: catoptrics, holography

History

Etymology

From Medieval Latin opticus (“optic, optical”), from Ancient Greek ὀπτικός (optikós), equivalent to optic + -ics.

Across languages

Translations

61 source translations are retained for this English entry.

  • Arabic: بَصَرِيَّات (baṣariyyāt) — physics of light and vision
  • Armenian: օպտիկա (ōptika) — physics of light and vision
  • Bulgarian: оптика (optika) — physics of light and vision
  • Catalan: òptica — physics of light and vision
  • Chinese Mandarin: 光學 /光学 (guāngxué) — physics of light and vision
  • Czech: optika — physics of light and vision
  • Dutch: optica — physics of light and vision
  • Dutch: optiek — physics of light and vision
  • Farefare: peelkarẽŋrɛ — physics of light and vision
  • Finnish: optiikka — physics of light and vision
  • Finnish: valo-oppi — physics of light and vision
  • German: Optik — physics of light and vision
  • Greek: οπτική (optikí) — physics of light and vision
  • Ancient Greek: ὀπτικά (optiká) — physics of light and vision
  • Gujarati: પ્રકાશવિજ્ઞાન (prakāśvijñān) — physics of light and vision
  • Hebrew: אופטיקה (óptika) — physics of light and vision
  • Hebrew: תורת האור (torat ha-ór) — physics of light and vision
  • Hindi: प्रकाशिकी (prakāśikī) — physics of light and vision
  • Hungarian: optika — physics of light and vision
  • Hungarian: fénytan — physics of light and vision
  • Icelandic: ljósfræði — physics of light and vision
  • Icelandic: sjónfræði — physics of light and vision
  • Indonesian: optika — physics of light and vision
  • Irish: optaic — physics of light and vision
  • Irish: radharceolaíocht — physics of light and vision
  • Italian: ottica — physics of light and vision
  • Japanese: 光学 (kōgaku) — physics of light and vision
  • Kannada: ದೃಗ್ವಿಜ್ಞಾನ (dṛgvijñāna) — physics of light and vision
  • Korean: 광학 (gwanghak) — physics of light and vision
  • Macedonian: оптика (optika) — physics of light and vision
  • Malay: optik — physics of light and vision
  • Malayalam: പ്രകാശശാസ്ത്രം (prakāśaśāstraṁ) — physics of light and vision
  • Marathi: प्रकाशशास्त्र (prakāśśāstra) — physics of light and vision
  • Marathi: प्रकाशिकी (prakāśikī) — physics of light and vision
  • Norwegian Bokmål: optikk — physics of light and vision
  • Norwegian Nynorsk: optikk — physics of light and vision
  • Persian: نورشناسی (nur-šenâsi) — physics of light and vision
  • Polish: optyka — physics of light and vision
  • Portuguese: óptica — physics of light and vision
  • Punjabi: ਪ੍ਰਕਾਸ਼ ਵਿਗਿਆਨ (prkāś vigiāna) — physics of light and vision
  • Punjabi: ਚਾਨਣ ਵਿਗਿਆਨ (cānaṇ vigiāna) — physics of light and vision
  • Russian: о́птика (óptika) — physics of light and vision
  • Serbo-Croatian: optika — physics of light and vision
  • Slovene: optika — physics of light and vision
  • Somali: araga — physics of light and vision
  • Spanish: óptica — physics of light and vision
  • Swedish: optik — physics of light and vision
  • Tagalog: dalubsugaan — physics of light and vision
  • Tagalog: sugaan — physics of light and vision
  • Telugu: కాంతిశాస్త్రము (kāntiśāstramu) — physics of light and vision
  • Thai: ทรรศนศาสตร์ (táts-ná-sàat) — physics of light and vision
  • Ukrainian: о́птика (óptyka) — physics of light and vision
  • Vietnamese: quang học — physics of light and vision
  • Võro: valgusõoppus — physics of light and vision
  • Welsh: opteg — physics of light and vision
  • Wolof: ngiste — physics of light and vision
  • Bulgarian: оптика (optika) — the light-related aspects of a device
  • Hebrew: אופטיקה (óptika) — the light-related aspects of a device
  • Norwegian Bokmål: optikk — the light-related aspects of a device
  • Norwegian Nynorsk: optikk — the light-related aspects of a device
  • Russian: о́птика (óptika) — the light-related aspects of a device
Real reading context

optics in complete knowledge articles