based on
"based-on" is a 7-letter English headword indexed on PlainSpell.
The verdict
“based on” is uncommon English (outside the top frequency list), classed as a preposition. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - On the basis of; because of; due to; according to; on the strength of; as per.
| Property | Value |
|---|---|
| Headword | based on |
| Language | English |
| Part of speech | Preposition |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “based on” sits in English frequency
Rare enough to double-check
based on is uncommon English outside the top frequency list, classed as apreposition. Rarity is why readers land here mid-draft. Gloss: "On the basis of; because of; due to; according to; on the strength of; as per.".
based on doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
No explicit etymology string is stored for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is based on, spelled B-A-S-E-D- -O-N.
Definition
- 1On the basis of; because of; due to; according to; on the strength of; as per.
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
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Using “based on”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is B-A-S-E-D- -O-N - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.