Which to use
“MO” is a noun and “my” is a determiner - they look or sound alike but fill different roles in a sentence.
- #3,770
- “MO” frequency rank
- #27
- “my” frequency rank
- 3797
- confusion score
Side-by-Side Comparison
| Feature | MO | my |
|---|---|---|
| Definition | Initialism of modus operandi. | First-person singular possessive determiner. See Appendix:Possessive#English. |
Letter map: MO vs my
Shared letters muted; letters that set MO and my apart highlighted. Shared run: 1.
Part-of-speech tell for MO / my
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: MO is anoun and myadeterminer. On the page they differ by a single letter - o in “MO” becomes y in “my”. Our composite confusion score for this pair is 3797, derived from the frequency rank of both members and their visual similarity.
MO is recorded at frequency rank #3,770, classified as anoun. 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 3797, this pair ranks #520,961 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of MO vs my
Shared letters: m. Private to "MO": o. Private to "my": y.
"MO" · 2 letters · shape CV · "my" · 2 letters · shape CV
Frequently Asked Questions
Do "MO" and "my" mean the same thing in a sentence?
Which is more common, "MO" or "my"?
What to do next
Pair "MO" vs "my" is on the table, pick a follow-up below.
- Full dictionary entry for "MO" 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 #520,961 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "MO" and "my" also get mixed up with nearby pairs, the highest-scored neighbour is "MO vs Moog". Nearby pair
Confusion rank #520,961 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.