ampoule

/ˈæm.puːl/

//ˈæm.puːl// noun

"ampoule" is a 7-letter English headword indexed on PlainSpell.

The verdict

“ampoule” is uncommon English (frequency #90,132 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#90,132
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A small hermetically sealed vial, often used to contain a sterile solution suitable for injection.

Corpus desk

Index EN-ampoule · ampoule · English

ampoule · rank #90,132 · 0 variants · 0 confusables

  • FREQ-RARE #90,132
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH amazeballs

Nearest frequency peer: amazeballs (-2 rank slots)

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.

Long-tail ranks near “ampoule”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “ampoule” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for ampoule
PropertyValue
Headwordampoule
LanguageEnglish
Part of speechNoun
IPA/ˈæm.puːl/
Letters7
Frequency rank#90,132
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ampoule” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).ampoulefalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “amazeballs” (#90,130), “anesthetist” (#90,134), “amateurism” (#90,129). Among 3,931 “A” headwords, “ampoule” is #90,132. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

ampoule is uncommon English at frequency #90,132 among 3,931 “A” headwords, classed as anoun, transcribed /ˈæm.puːl/. Rarity is why readers land here mid-draft. Gloss: "A small hermetically sealed vial, often used to contain a sterile solution suitable for injection.".

Our edit-distance generator produced no likely misspellings for ampoule, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: Borrowed from French ampoule. Etymologically equivalent to amphora + -ule/-le. The correct English form is ampoule, spelled A-M-P-O-U-L-E.

Definition

  1. 1
    A small hermetically sealed vial, often used to contain a sterile solution suitable for injection.

Etymology

Borrowed from French ampoule. Etymologically equivalent to amphora + -ule/-le.

This word in other languages

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 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "ampoule"?
"ampoule" is spelled A-M-P-O-U-L-E. The IPA pronunciation is /ˈæm.puːl/.
What does "ampoule" mean?
As a noun, "ampoule" means: A small hermetically sealed vial, often used to contain a sterile solution suitable for injection.
How do you pronounce "ampoule"?
The IPA (International Phonetic Alphabet) transcription for "ampoule" is /ˈæm.puːl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "ampoule"?
Borrowed from French ampoule. Etymologically equivalent to amphora + -ule/-le. See the full etymology section above for more details.
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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "ampoule", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list