optics
/ˈɑptɪks/noun
optics is spelled O-P-T-I-C-S: 6 letters and 2 syllables. It appears 3.8 times per million words in written English, the 13,321st most frequent word form (wordfreq, 2021 data). As a noun, optics means “The physics of light and vision: basic optical science” (English Wiktionary, September 2026).
How many letters and syllables are in optics?
| Letters | 6: O-P-T-I-C-S |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 3.8 times per million words; the 13,321st most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is optics?
Optics appears 3.8 times per million words in written English, the 13,321st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce optics?
- UK /ˈɒptɪks/
- US /ˈɑptɪks/
Optics has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-optics.wav, Wikimedia Commons (author and licence on each file's page).
What does optics mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The physics of light and vision: basic optical science.
a PhD in the optics of liquid crystals
- 2
Technology that makes use of such physics: applied optical science; business lines making use of such technology.
defense R&D investments in both optics and electronics
- 3
The light-related aspects of a device.
the optics of liquid crystals under certain laboratory conditions
- 4
Perception, image, public relations, especially in politics.
Near-synonyms: appearances, spectacle, theatrics; choreography
- 5
plural of optic
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Optics in Spanish, French, German and Portuguese
In the sense physics of light and vision:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does optics come from?
From Medieval Latin opticus (“optic, optical”), from Ancient Greek ὀπτικός (optikós), equivalent to optic + -ics.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).