MrsvsmustWhat's the difference?

Quick tell: Mrs is a noun, must is a verb, so they fill different roles in a sentence.

Which to use

“Mrs” is a noun and “must” is a verb - they look or sound alike but fill different roles in a sentence.

#1,372
“Mrs” frequency rank
#198
“must” frequency rank
1570
confusion score

Side-by-Side Comparison

Feature Mrs must
Definition Abbreviation of Missus or Mistress; used before an adult woman's name or surname, used for any high-status woman without regard to marital status until the 1800s, after which it began to be reserved for married, divorced and widowed women and used with their married surnames. To do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a failure or negative consequence.

Where the eye mixes Mrs and must

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
Mrs
4 ch
must

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Mrs is /ˈmɪsɪz/ while must is /məst/. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 1570, derived from the frequency rank of both members and their visual similarity.

Mrs is recorded at frequency rank #1,372, classified as anoun, pronounced /ˈmɪsɪz/. must is at rank #198, tagged as averb, pronounced /məst/.

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 1570, this pair ranks #527,155 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Mrs vs must

Shared letters: ms. Private to "Mrs": r. Private to "must": tu.

"Mrs" · 3 letters · shape CCC  ·  "must" · 4 letters · shape CVCC

Known mistypes of this pair

  • mustmmust · msut · musst · mustt · muts · umst

Frequently Asked Questions

Can "Mrs" and "must" be used interchangeably?
No - they are not even the same part of speech. "Mrs" is a noun and "must" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Mrs" or "must"?
"must" is the more common of the two: it sits at frequency rank #198 in our English list, against #1,372 for "Mrs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "Mrs" and "must". Here's where to go from here.

  • Full dictionary entry for "Mrs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "must" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #527,155 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Mrs" and "must" also get mixed up with nearby pairs, the highest-scored neighbour is "MMP vs Mrs". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list