passthrough
noun
passthrough is spelled P-A-S-S-T-H-R-O-U-G-H: 11 letters. It appears about once in every 12 million words in written English, the 103,949th most frequent word form (wordfreq, 2021 data). As a noun, passthrough means “As of a signal through a device or network” (English Wiktionary, September 2026). The plural of passthrough is passthroughs.
How many letters and syllables are in passthrough?
| Letters | 11: P-A-S-S-T-H-R-O-U-G-H |
|---|---|
| In writing | about once in every 12 million words; the 103,949th most frequent word form |
| 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 common is passthrough?
Passthrough appears about once in every 12 million words in written English, the 103,949th 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).
Forms of passthrough
- passthroughs plural
- passthru
- pass-through
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does passthrough mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
As of a signal through a device or network.
- 2
As of increased costs through a business entity to its customers through increased prices.
The airlines called the fuel surcharge a passthrough, but did not rescind it until well after fuel prices had returned to previous levels.
- 3
Allowing the use of some resource unchanged from one system to another.
GPU passthrough
- 4
A wall opening intended to allow something to be passed through it.
- 5
A legal entity intended to not incur (income) taxation at the entity, but solely at the beneficiaries.
Partnerships, limited-liability companies, and Subchapter S corporations are the main US passthroughs.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Passthrough in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | traversée |
| Spanish | modo transparente, passthru (pászru) |
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 passthrough come from?
Deverbal from pass through.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).