weak sister
"weak-sister" is a 10-letter English headword indexed on PlainSpell.
The verdict
“weak sister” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 11
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A person who is cowardly or indecisive.
| Property | Value |
|---|---|
| Headword | weak sister |
| Language | English |
| Part of speech | Noun |
| Letters | 11 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “weak sister” sits in English frequency
Spelling & Dictionary Insight
The English entry for weak sister is 11 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
No generated misspelling entries exist for weak sister in our index, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.
This headword's origin isn't recorded in our source data, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is weak sister, spelled W-E-A-K- -S-I-S-T-E-R.
Definition
- 1A person who is cowardly or indecisive.
- 2A person or thing which is the least robust or least dependable member of a group.
Synonyms
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 “weak sister”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is W-E-A-K- -S-I-S-T-E-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.