on site

prep_phrase

"on-site" is a 6-letter English headword indexed on PlainSpell.

The verdict

“on site” is uncommon English (outside the top frequency list), classed as a prep_phrase. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - At the site of a job, or at the location of the customer of a product or service, as opposed to at the vendor's factory, office, or studio.

Corpus desk

Index EN-on-site · on site · English

on site · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for on site
PropertyValue
Headwordon site
LanguageEnglish
Part of speechPrep_phrase
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “on site” in English

on siteranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

on site is uncommon English outside the top frequency list, classed as aprep_phrase. Rarity is why readers land here mid-draft. Gloss: "At the site of a job, or at the location of the customer of a product or service, as opposed to at the vendor's factory, office, or studio.".

on site doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

This headword's origin isn't recorded in our source data, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is on site, spelled O-N- -S-I-T-E.

Definition

  1. 1
    At the site of a job, or at the location of the customer of a product or service, as opposed to at the vendor's factory, office, or studio.

Recorded use

Wiktionary examples

These source excerpts show how on site appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. If we can't figure out how to diagnose this problem remotely, we're going to have to go on site again.
  2. The final paint touch-ups will be performed on site, after installation.

Antonyms

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "on site"?
"on site" is spelled O-N- -S-I-T-E.
What does "on site" mean?
As a prep_phrase, "on site" means: At the site of a job, or at the location of the customer of a product or service, as opposed to at the vendor's factory, office, or studio.
What language does "on site" come from?
"on site" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list