nogvsnonWhat's the difference?

Quick tell: nog is a noun, non is an adverb, so they fill different roles in a sentence.

Which to use

“nog” is a noun and “non” is an adverb - they look or sound alike but fill different roles in a sentence.

#46,089
“nog” frequency rank
#515
“non” frequency rank
46604
confusion score

Side-by-Side Comparison

Feature nog non
Definition A wooden block, the size of a brick, built into a wall, as a hold for the nails of woodwork. Obsolete form of none.

Where the eye mixes nog and non

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. nog and non follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
nog
3 ch
non

Visual trap between nog and non

These two trip readers on the page rather than in the ear: nog is /nɒɡ/ while non is /nɑn/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “nog” becomes n in “non”, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 46604, derived from the frequency rank of both members and their visual similarity.

nog is recorded at frequency rank #46,089, classified as anoun, pronounced /nɒɡ/. non is at rank #515, tagged as anadv, pronounced /nɑn/.

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 46604, this pair ranks #210,200 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of nog vs non

Shared letters: no. Private to "nog": g. Private to "non": -.

"nog" · 3 letters · shape CVC  ·  "non" · 3 letters · shape CVC

Frequently Asked Questions

Do "nog" and "non" mean the same thing in a sentence?
No - they are not even the same part of speech. "nog" is a noun and "non" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "nog" vs "non" - which ranks higher?
"non" is the more common of the two: it sits at frequency rank #515 in our English list, against #46,089 for "nog". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "nog" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "non" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #210,200 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "nog" and "non" also get mixed up with nearby pairs, the highest-scored neighbour is "nog vs NPL". Nearby pair

Confusion rank #210,200 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