grass up
"grass-up" is a 7-letter English headword indexed on PlainSpell.
The verdict
“grass up” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To betray by informing on.
| Property | Value |
|---|---|
| Headword | grass up |
| Language | English |
| Part of speech | Verb |
| Letters | 8 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “grass up” sits in English frequency
Spelling & Dictionary Insight
The English entry for grass up is 8 letters long, classified as a verb. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "To betray by informing on.".
No generated misspelling entries exist for grass up in our index, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From grass (“informer”) + up. The correct English form is grass up, spelled G-R-A-S-S- -U-P.
Definition
- 1To betray by informing on.
Etymology
From grass (“informer”) + up.
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
How do you spell "grass up"?
What does "grass up" mean?
What is the origin of the word "grass up"?
Is PlainSpell free to use?
Using “grass up”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is G-R-A-S-S- -U-P - 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.