mobvsmyWhat's the difference?

Quick tell: mob is a noun, my is a determiner, so they fill different roles in a sentence.

Which to use

“mob” is a noun and “my” is a determiner - they look or sound alike but fill different roles in a sentence.

#6,810
“mob” frequency rank
#27
“my” frequency rank
6837
confusion score

Side-by-Side Comparison

Feature mob my
Definition A large or disorderly group of people; especially one bent on riotous or destructive action. First-person singular possessive determiner. See Appendix:Possessive#English.

Where the eye mixes mob and my

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

3 ch
mob
2 ch
my

Why the eye confuses mob with my

These two trip readers on the page rather than in the ear: mob is /mɒb/ while my is /maɪ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 6837, derived from the frequency rank of both members and their visual similarity.

mob is recorded at frequency rank #6,810, classified as anoun, pronounced /mɒb/. my is at rank #27, tagged as adet, pronounced /maɪ/.

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 6837, this pair ranks #509,749 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of mob vs my

Shared letters: m. Private to "mob": bo. Private to "my": y.

"mob" · 3 letters · shape CVC  ·  "my" · 2 letters · shape CV

Frequently Asked Questions

Do "mob" and "my" mean the same thing in a sentence?
No - they are not even the same part of speech. "mob" is a noun and "my" a determiner, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "mob" or "my" show up more?
"my" is the more common of the two: it sits at frequency rank #27 in our English list, against #6,810 for "mob". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "mob" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "my" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #509,749 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "mob" and "my" also get mixed up with nearby pairs, the highest-scored neighbour is "mob vs Moog". Nearby pair

Confusion rank #509,749 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