Which to use
“mab” is a noun and “MI5” is a name - they look or sound alike but fill different roles in a sentence.
- #47,175
- “mab” frequency rank
- #33,328
- “MI5” frequency rank
- 80503
- confusion score
Side-by-Side Comparison
| Feature | mab | MI5 |
|---|---|---|
| Definition | A slattern. | The domestic intelligence and counter-espionage agency of the United Kingdom, which operates in secret and whose primary function is to spy on terrorist organizations and others viewed as a threat to British national security. Formally known as the Security Service. |
Letter map: mab vs MI5
Shared letters muted; letters that set mab and MI5 apart highlighted. Shared run: 1.
Part-of-speech tell for mab / MI5
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: mab is anoun and MI5aname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 80503, derived from the frequency rank of both members and their visual similarity.
mab is recorded at frequency rank #47,175, classified as anoun. MI5 is at rank #33,328, tagged as aname.
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 80503, this pair ranks #19,644 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of mab vs MI5
Shared letters: m. Private to "mab": ab. Private to "MI5": i.
"mab" · 3 letters · shape CVC · "MI5" · 2 letters · shape CV
Frequently Asked Questions
Is swapping "mab" for "MI5" ever safe?
Which is more common, "mab" or "MI5"?
What to do next
Pair "mab" vs "MI5" is on the table, pick a follow-up below.
- Full dictionary entry for "mab" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "MI5" - compare definitions side by side with the headword page. Word entry
- This pair ranks #19,644 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "mab" and "MI5" also get mixed up with nearby pairs, the highest-scored neighbour is "mab vs MPAA". Nearby pair
Confusion rank #19,644 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.