sig vs six, What's the Difference?

Which to use

“sig” is a noun and “six” is a num - they look or sound alike but fill different roles in a sentence.

#20,497
“sig” frequency rank: #519
“six” frequency rank: 21016
confusion score

Side-by-Side Comparison

Feature	sig	six
Definition	A signature, especially one on emails or newsgroup postings.	A numerical value equal to 6; the number following five and preceding seven. This number of dots: (••••••).

Where the eye mixes sig and six

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

3 ch

sig

3 ch

six

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sig is /sɪɡ/ while six is /sɪks/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “sig” becomes x in “six”, and the parts of speech differ too (noun vs num), which is usually the fastest check. Our composite confusion score for this pair is 21016, derived from the frequency rank of both members and their visual similarity.

sig is recorded at frequency rank #20,497, classified as anoun, pronounced /sɪɡ/. six is at rank #519, tagged as anum, pronounced /sɪks/.

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 21016, this pair ranks #427,015 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sig vs six

Shared letters: is. Private to "sig": g. Private to "six": x.

"sig" · 3 letters · shape CVC · "six" · 3 letters · shape CVC

Frequently Asked Questions

Can "sig" and "six" be used interchangeably?

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

Which is more common, "sig" or "six"?

"six" is the more common of the two: it sits at frequency rank #519 in our English list, against #20,497 for "sig". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "sig" and "six". Here's where to go from here.

Full dictionary entry for "sig" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "six" - compare definitions side by side with the headword page. Word entry
This pair ranks #427,015 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"sig" and "six" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sig". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.