must

/ˈmʌst/

//ˈmʌst// verb

The verdict

“must” is a moderately-common Spanish word, ranked #23,144 in Spanish word frequency and used as a verb.

#23,144
frequency rank, Spanish
4
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Deber, tener que.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

must vs muy
50% similar
must vs mute
50% similar
must vs mu
50% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for must
PropertyValue
Headwordmust
LanguageSpanish
Part of speechVerb
IPA/ˈmʌst/
Letters4
Frequency rank#23,144
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “must” sits in Spanish frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). must lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The Spanish entry for must is 4 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /ˈmʌst/. Corpus data places it at rank #23,144 in overall Spanish word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Deber, tener que.".

Our generated misspelling index lists 6 likely wrong-spelling variants for must, with forms such as "mmust", "msut", and "musst". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "muy", "mute", "mu", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

This entry carries no recorded etymology, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Spanish form is must, spelled M-U-S-T.

Definition

  1. 1
    Deber, tener que.

Common misspellings

Also misspelled as: mmust,msut,musst,mustt,muts,umst

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of must - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

mmust1msut2musst1mustt1muts2umst2
Edit distance from "must"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "must"?
"must" is spelled M-U-S-T. The IPA pronunciation is /ˈmʌst/.
What does "must" mean?
As a verb, "must" means: Deber, tener que.
What words are commonly confused with "must"?
"must" is commonly confused with "muy", "mute", "mu". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "must"?
The IPA (International Phonetic Alphabet) transcription for "must" is /ˈmʌst/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "must" come from?
"must" is a Spanish word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “must”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Spanish spelling is M-U-S-T - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈmʌst/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “muy” - see the side-by-side comparison. must vs muy
  • Browse more Spanish words and confusable pairs in the same reference. Spanish words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list