MP4 vs my, What's the Difference?

Which to use

“MP4” is a noun and “my” is a determiner - they look or sound alike but fill different roles in a sentence.

#26,176
“MP4” frequency rank: #27
“my” frequency rank: 26203
confusion score

Side-by-Side Comparison

Feature	MP4	my
Definition	Abbreviation of MPEG-4 Part 14, a file format for playing music and videos.	First-person singular possessive determiner. See Appendix:Possessive#English.

Letter map: MP4 vs my

Shared letters muted; letters that set MP4 and my apart highlighted. Shared run: 1.

3 ch

MP4

2 ch

Grammar separator: MP4 vs my

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: MP4 is anoun and myadeterminer. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 26203, derived from the frequency rank of both members and their visual similarity.

MP4 is recorded at frequency rank #26,176, 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 26203, this pair ranks #388,442 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of MP4 vs my

Shared letters: m. Private to "MP4": p. Private to "my": y.

"MP4" · 2 letters · shape CC · "my" · 2 letters · shape CV

Frequently Asked Questions

Do "MP4" and "my" mean the same thing in a sentence?

No - they are not even the same part of speech. "MP4" is a noun and "my" a determiner, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "MP4" vs "my" - which ranks higher?

"my" is the more common of the two: it sits at frequency rank #27 in our English list, against #26,176 for "MP4". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "MP4" and "my".

Full dictionary entry for "MP4" 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 #388,442 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"MP4" and "my" also get mixed up with nearby pairs, the highest-scored neighbour is "MP4 vs MPAA". Nearby pair

Confusion rank #388,442 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.