intra-
/ˌɪn.tɹə/
"intra" is a 5-letter English headword indexed on PlainSpell.
The verdict
“intra-” is outside the top-ranked English vocabulary, used as a prefix - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Within a single entity indicated by the root word:
| Property | Value |
|---|---|
| Headword | intra- |
| Language | English |
| Part of speech | Prefix |
| IPA | /ˌɪn.tɹə/ |
| Letters | 6 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “intra-” sits in English frequency
Spelling & Dictionary Insight
The English entry for intra- is 6 letters long, classified as a prefix, and transcribed in the International Phonetic Alphabet as /ˌɪn.tɹə/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 12 distinct senses for this headword, so context determines which meaning a reader should apply.
No generated misspelling entries exist for intra- in our index, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: Borrowed from Latin intrā (“within”). The correct English form is intra-, spelled I-N-T-R-A--.
Definition
- 1Within a single entity indicated by the root word:
- 2Within a single entity indicated by the root word:
- 3Within a single entity indicated by the root word:
- 4Within a single entity indicated by the root word:
- 5A direction that is inward or into the location indicated by the root word.
- 6Indicating that the root is internal in nature.
- 7In between two entities:
- 8In between two entities:
- 9In between two entities:
- 10The interior of the region indicated by the root.
- 11A part of the root entity.
- 12In alignment or synchronous with the root entity.
Etymology
Borrowed from Latin intrā (“within”).
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 “intra-”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N-T-R-A-- - every other letter order is a misspelling in standard orthography.
- Say it as /ˌɪn.tɹə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.