r vs rog, What's the Difference?

Which to use

“r” is a character and “rog” is a noun - they look or sound alike but fill different roles in a sentence.

#637
“r” frequency rank: #49,334
“rog” frequency rank: 49971
confusion score

Side-by-Side Comparison

Feature	r	rog
Definition	Dix-huitième lettre et quatorzième consonne de l’alphabet (minuscule).	« ? » ou point d’interrogation

Where the spellings diverge

Shared letters are muted; the letters that actually set r and rog apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

1 ch

3 ch

rog

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: r is \ɛʁ\ while rog is \ʁɔɡ\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “r” sits inside “rog”, and the parts of speech differ too (character vs noun), which is usually the fastest check. Our composite confusion score for this pair is 49971, derived from the frequency rank of both members and their visual similarity.

r is recorded at frequency rank #637, classified as acharacter, pronounced \ɛʁ\. rog is at rank #49,334, tagged as anoun, pronounced \ʁɔɡ\.

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 49971, this pair ranks #166,370 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of r vs rog

Shared letters: r. Private to "r": -. Private to "rog": go.

"r" · 1 letters · shape C · "rog" · 3 letters · shape CVC

Frequency comparison

r#637

rog#49,334

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "r" and "rog" be used interchangeably?

No - they are not even the same part of speech. "r" is a character and "rog" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "r" or "rog"?

"r" is the more common of the two: it sits at frequency rank #637 in our French list, against #49,334 for "rog". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering r vs rog

The fastest way to pick the right one every time.

Check the role first: if you need a character, it's “r”; for a noun, it's “rog”.
See each word in full, definition, IPA, etymology and its other confusables. Full “r” entry
Browse more pairs most likely to be confused. Most confusable