lightbox

Name: lightbox, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed May 6, 2026

The verdict

“lightbox” is uncommon English (frequency #80,620 among 16,425 “L” headwords), classed as a noun. The kind of spelling people second-guess.

#80,620
frequency rank, English: 16,425
“L” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A box containing a source of light and a white, translucent cover, used to view photographic transparencies.

Key facts for lightbox
Property	Value
Headword	lightbox
Language	English
Part of speech	Noun
Letters	8
Frequency rank	#80,620
Misspellings tracked	0
Confusable pairs	0
Source	Wiktionary (kaikki.org)

Where “lightbox” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). lightbox lands here:

#80,620

#1#100#1K#10K#100K

← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

lightbox is uncommon English at frequency #80,620 among 16,425 “L” headwords, classed as anoun. Rarity is why readers land here mid-draft. 5 senses are on record.

lightbox doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From light + box. In the Internet sense, originally the name of one specific technique. The correct English form is lightbox, spelled L-I-G-H-T-B-O-X.

Definition

1
A box containing a source of light and a white, translucent cover, used to view photographic transparencies.
2
A box containing fluorescent tubes or LED technology, used to treat people with seasonal affective disorder (SAD) and circadian rhythm disorders.
3
A kind of pop-up that is overlaid across a web page while the rest of the content is dimmed.
4
A backbox.
5
A device used in phreaking that indicates when a telephone line is in use by means of a light.

Etymology

From light + box. In the Internet sense, originally the name of one specific technique.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "lightbox"?

"lightbox" is spelled L-I-G-H-T-B-O-X.

What does "lightbox" mean?

As a noun, "lightbox" means: A box containing a source of light and a white, translucent cover, used to view photographic transparencies.

What is the origin of the word "lightbox"?

From light + box. In the Internet sense, originally the name of one specific technique. See the full etymology section above for more details.

Is PlainSpell free to use?

Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “lightbox”

The practical upshot for anyone who landed here from a spell-check.

The one correct English spelling is L-I-G-H-T-B-O-X - every other letter order is a misspelling in standard orthography.
Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.