grass on

verb

"grass-on" is a 7-letter English headword indexed on PlainSpell.

The verdict

“grass on” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To betray by informing on.

Corpus desk

Index EN-grass-on · grass on · English

grass on · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "G" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for grass on
PropertyValue
Headwordgrass on
LanguageEnglish
Part of speechVerb
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “grass on” in English

grass onfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

grass on is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "To betray by informing on.".

grass on has no tracked misspelling variants, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This entry's etymology isn't recorded, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is grass on, spelled G-R-A-S-S- -O-N.

Definition

  1. 1
    To betray by informing on.

Recorded use

Wiktionary example

These source excerpts show how grass on appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. What I was pissed off about, though, was him telling everyone that he'd only grassed on me because I'd grassed on him first, which was a total lie.

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 on"?
"grass on" is spelled G-R-A-S-S- -O-N.
What does "grass on" mean?
As a verb, "grass on" means: To betray by informing on.
What language does "grass on" come from?
"grass on" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list