seavssixWhat's the difference?

Quick tell: sea is a noun, six is a num, so they fill different roles in a sentence.

Which to use

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

#933
“sea” frequency rank
#519
“six” frequency rank
1452
confusion score

Side-by-Side Comparison

Feature sea six
Definition A large body of salt water. A numerical value equal to 6; the number following five and preceding seven. This number of dots: (••••••).

Where the eye mixes sea and six

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

3 ch
sea
3 ch
six

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sea is /siː/ while six is /sɪks/. 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 num), which is usually the fastest check. Our composite confusion score for this pair is 1452, derived from the frequency rank of both members and their visual similarity.

sea is recorded at frequency rank #933, classified as anoun, pronounced /siː/. 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 1452, this pair ranks #527,401 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sea vs six

Shared letters: s. Private to "sea": ae. Private to "six": ix.

"sea" · 3 letters · shape CVV  ·  "six" · 3 letters · shape CVC

Frequently Asked Questions

Can "sea" and "six" be used interchangeably?
No - they are not even the same part of speech. "sea" is a noun and "six" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sea" or "six"?
"six" is the more common of the two: it sits at frequency rank #519 in our English list, against #933 for "sea". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "sea" 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 #527,401 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sea" and "six" also get mixed up with nearby pairs, the highest-scored neighbour is "sea vs sura". Nearby pair

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

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

Source: FrequencyWords open word-frequency list