grinvsgroWhat's the difference?

Quick tell: grin is a noun, gro is an adjective, so they fill different roles in a sentence.

Which to use

“grin” is a noun and “gro” is an adjective - they look or sound alike but fill different roles in a sentence.

#13,165
“grin” frequency rank
#42,164
“gro” frequency rank
55329
confusion score

Side-by-Side Comparison

Feature grin gro
Definition A smile in which the lips are parted to reveal the teeth. Disgusting, unpleasant; gross.

Where the eye mixes grin and gro

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
grin
3 ch
gro

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: grin is /ɡɹɪn/ while gro is /ˈɡrəʊ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 55329, derived from the frequency rank of both members and their visual similarity.

grin is recorded at frequency rank #13,165, classified as anoun, pronounced /ɡɹɪn/. gro is at rank #42,164, tagged as anadj, pronounced /ˈɡrəʊ/.

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 55329, this pair ranks #134,453 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of grin vs gro

Shared letters: gr. Private to "grin": in. Private to "gro": o.

"grin" · 4 letters · shape CCVC  ·  "gro" · 3 letters · shape CCV

Known mistypes of this pair

  • gringgrin · girn · grinn · grni · grrin · rgin

Frequently Asked Questions

Can "grin" and "gro" be used interchangeably?
No - they are not even the same part of speech. "grin" is a noun and "gro" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "grin" or "gro"?
"grin" is the more common of the two: it sits at frequency rank #13,165 in our English list, against #42,164 for "gro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list