mex vs moc, What's the Difference?

Which to use

“mex” and “moc” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#30,134
“mex” frequency rank: #46,632
“moc” frequency rank: 76766
confusion score

Side-by-Side Comparison

Feature	mex	moc
Definition	The mex of a subset of a well-ordered set is the smallest value from the whole set that does not belong to the subset.	moccasin (type of shoe)

Where the spellings diverge

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

3 ch

mex

3 ch

moc

Spelling & Dictionary Insight

mex and moc are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 76766, derived from the frequency rank of both members and their visual similarity.

mex is recorded at frequency rank #30,134, classified as anoun. moc is at rank #46,632, tagged as anoun.

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 76766, this pair ranks #29,199 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of mex vs moc

Shared letters: m. Private to "mex": ex. Private to "moc": co.

"mex" · 3 letters · shape CVC · "moc" · 3 letters · shape CVC

Frequency comparison

mex#30,134

moc#46,632

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "mex" and "moc" be used interchangeably?

No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "mex" or "moc"?

"mex" is the more common of the two: it sits at frequency rank #30,134 in our English list, against #46,632 for "moc". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering mex vs moc

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “mex” entry
Browse more pairs most likely to be confused. Most confusable