Sr.
"sr" is a 2-letter English headword indexed on PlainSpell.
The verdict
“Sr.” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 3
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Abbreviation of senior A title used after a father's name when his son is given the same name.
| Property | Value |
|---|---|
| Headword | Sr. |
| Language | English |
| Part of speech | Adjective |
| Letters | 3 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “Sr.” sits in English frequency
Rare enough to double-check
Sr. is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Abbreviation of senior A title used after a father's name when his son is given the same name.".
Sr. doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
This entry's etymology isn't recorded, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is Sr., spelled S-R-..
Definition
- 1Abbreviation of senior A title used after a father's name when his son is given the same name.
Synonyms
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 “Sr.”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-R-. - 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.