nagvsnonWhat's the difference?

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

Which to use

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

#23,047
“nag” frequency rank
#515
“non” frequency rank
23562
confusion score

Side-by-Side Comparison

Feature nag non
Definition A small horse; a pony. Obsolete form of none.

Where the eye mixes nag and non

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
nag
3 ch
non

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: nag is /ˈnæɡ/ while non is /nɑn/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 23562, derived from the frequency rank of both members and their visual similarity.

nag is recorded at frequency rank #23,047, classified as anoun, pronounced /ˈnæɡ/. 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 23562, this pair ranks #408,398 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of nag vs non

Shared letters: n. Private to "nag": ag. Private to "non": o.

"nag" · 3 letters · shape CVC  ·  "non" · 3 letters · shape CVC

Frequently Asked Questions

Can "nag" and "non" be used interchangeably?
No - they are not even the same part of speech. "nag" is a noun and "non" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "nag" or "non"?
"non" is the more common of the two: it sits at frequency rank #515 in our English list, against #23,047 for "nag". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list