black light
noun
black light is spelled B-L-A-C-K-L-I-G-H-T: 10 letters. As a noun, black light means “A light bulb that emits ultraviolet light, usually used to create the illusion that anything white is glowing” (English Wiktionary, September 2026). The plural of black light is black lights.
How many letters and syllables are in black light?
| Letters | 10: B-L-A-C-K-L-I-G-H-T |
|---|---|
| In writing | a phrase: the frequency list counts single words |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce black light?
- Australia
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-au-black_light.ogg, Wikimedia Commons (author and licence on each file's page).
Words people confuse with black light
Also written: blacklight (one word or two).
Sources: English Wiktionary (homophones, alternative spellings).
Forms of black light
- black lights plural
- blacklight
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does black light mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A light bulb that emits ultraviolet light, usually used to create the illusion that anything white is glowing.
- 2
slangUltraviolet radiation or light.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Black light in Spanish, French, German and Portuguese
In the sense light bulb that emits ultraviolet light:
| Language | Words |
|---|---|
| French | lumière noire |
| German | Schwarzlicht |
| Spanish | luz negra |
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 black light come from?
From black + light, since ultraviolet light is invisible to the human eye.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).