open one's mouth

verb

"open-one-s-mouth" is a 13-letter English headword indexed on PlainSpell.

The verdict

“open one's mouth” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
16
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - to speak

Corpus desk

Index EN-open-one-s-mouth · open one's mouth · English

open one's mouth · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 16 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for open one's mouth
PropertyValue
Headwordopen one's mouth
LanguageEnglish
Part of speechVerb
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “open one's mouth” in English

open one's mouthranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

open one's mouth is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "to speak".

Our edit-distance generator produced no likely misspellings for open one's mouth, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is open one's mouth, spelled O-P-E-N- -O-N-E-'-S- -M-O-U-T-H.

Definition

  1. 1
    to speak

Recorded use

Wiktionary example

These source excerpts show how open one's mouth appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. I advise you: don't open your mouth at the dinner.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "open one's mouth"?
"open one's mouth" is spelled O-P-E-N- -O-N-E-'-S- -M-O-U-T-H.
What does "open one's mouth" mean?
As a verb, "open one's mouth" means: to speak
What language does "open one's mouth" come from?
"open one's mouth" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

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

Source: FrequencyWords open word-frequency list