gradesvsgrassWhich spelling fits?

Which to use

“grades” and “grass” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#4,452
“grades” frequency rank
#3,758
“grass” frequency rank
8210
confusion score

Side-by-Side Comparison

Feature grades grass
Definition plural of grade Any plant of the family Poaceae, characterized by leaves that arise from nodes in the stem and leaf bases that wrap around the stem, especially those grown as ground cover rather than for grain.

Where the eye mixes grades and grass

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
grades
5 ch
grass

Look-alike desk: grades vs grass

A purely visual mix-up. grades (/ɡɹeɪdz/) and grass (/ɡɹɑːs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 8210, derived from the frequency rank of both members and their visual similarity.

grades is recorded at frequency rank #4,452, classified as anoun, pronounced /ɡɹeɪdz/. grass is at rank #3,758, tagged as anoun, pronounced /ɡɹɑːs/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 8210, this pair ranks #503,636 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of grades vs grass

Shared letters: agrs. Private to "grades": de. Private to "grass": -.

"grades" · 6 letters · shape CCVCVC  ·  "grass" · 5 letters · shape CCVCC

Known mistypes of this pair

  • gradesgardes · ggrades · graddes · gradess · gradse · graeds · grdaes · grrades
  • grassgarss · ggrass · grrass · grsas · rgass

Frequently Asked Questions

Is swapping "grades" for "grass" ever safe?
No. They are said differently (/ɡɹeɪdz/ versus /ɡɹɑːs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "grades" or "grass"?
"grass" is the more common of the two: it sits at frequency rank #3,758 in our English list, against #4,452 for "grades". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "grades" and "grass" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "grades" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "grass" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #503,636 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "grades" and "grass" also get mixed up with nearby pairs, the highest-scored neighbour is "grass vs grasse". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #503,636 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list