milmillonésimo

[milmiʝoˈnesimo]

/[milmiʝoˈnesimo]/ adj

The verdict

“milmillonésimo” is uncommon Spanish (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency Spanish
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - En el Sistema Internacional de Unidades, cantidad equivalente a 0,000 000 001 o bien 1 x 10⁻⁹ en notación científica.

Corpus desk

Index ES-milmillonesimo · milmillonésimo · Spanish

milmillonésimo · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "M" thin
  • PHOTO-UNK Peer pending

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 milmillonésimo
PropertyValue
Headwordmilmillonésimo
LanguageSpanish
Part of speechAdjective
IPA[milmiʝoˈnesimo]
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cola larga: rango de “milmillonésimo” en español

milmillonésimoqueda fuera de las 100.000 palabras españolas más frecuentes, en la cola larga de vocabulario técnico, arcaico o raro, justo donde más se duda de la ortografía.

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

Rare enough to double-check

milmillonésimo is uncommon Spanish outside the top frequency list, classed as anadjective, transcribed [milmiʝoˈnesimo]. Rarity is why readers land here mid-draft. 2 senses are on record.

milmillonésimo has no tracked misspelling variants, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct Spanish form is milmillonésimo, spelled M-I-L-M-I-L-L-O-N-É-S-I-M-O.

Definition

  1. 1
    En el Sistema Internacional de Unidades, cantidad equivalente a 0,000 000 001 o bien 1 x 10⁻⁹ en notación científica.
  2. 2
    El inverso multiplicativo de mil millones, y puede ser escrito también como 1/1,000,000,000.

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 "milmillonésimo"?
"milmillonésimo" is spelled M-I-L-M-I-L-L-O-N-É-S-I-M-O. The IPA pronunciation is [milmiʝoˈnesimo].
What does "milmillonésimo" mean?
As an adjective, "milmillonésimo" means: En el Sistema Internacional de Unidades, cantidad equivalente a 0,000 000 001 o bien 1 x 10⁻⁹ en notación científica.
How do you pronounce "milmillonésimo"?
The IPA (International Phonetic Alphabet) transcription for "milmillonésimo" is [milmiʝoˈnesimo]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "milmillonésimo" come from?
"milmillonésimo" is a Spanish 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