opossum

/əˈpɒsəm/

//əˈpɒsəm// noun

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

The verdict

“opossum” is an uncommon English word, ranked #54,987 in English word frequency and used as a noun.

#54,987
frequency rank, English
7
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any American marsupial of the family Didelphidae in the order Didelphimorphia.

Key facts for opossum
PropertyValue
Headwordopossum
LanguageEnglish
Part of speechNoun
IPA/əˈpɒsəm/
Letters7
Frequency rank#54,987
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “opossum” sits in English 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). opossum 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 English entry for opossum is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /əˈpɒsəm/. Corpus data places it at rank #54,987 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Any American marsupial of the family Didelphidae in the order Didelphimorphia.".

No generated misspelling entries exist for opossum in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Etymology tree Proto-Algonquian *wa·p- Proto-Algonquian *aθemwa Proto-Algonquian *wa·p-aʔθemwa Powhatan aposoumbor. English opossum From Powhatan aposoum (“white animal”), from Proto-Algonquian *wa·p-aʔθemwa (“white dog”); compare Ojibwe waabasim (“white do… The correct English form is opossum, spelled O-P-O-S-S-U-M.

Definition

  1. 1
    Any American marsupial of the family Didelphidae in the order Didelphimorphia.

Etymology

Etymology tree Proto-Algonquian *wa·p- Proto-Algonquian *aθemwa Proto-Algonquian *wa·p-aʔθemwa Powhatan aposoumbor. English opossum From Powhatan aposoum (“white animal”), from Proto-Algonquian *wa·p-aʔθemwa (“white dog”); compare Ojibwe waabasim (“white dog”).

Synonyms

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 "opossum"?
"opossum" is spelled O-P-O-S-S-U-M. The IPA pronunciation is /əˈpɒsəm/.
What does "opossum" mean?
As a noun, "opossum" means: Any American marsupial of the family Didelphidae in the order Didelphimorphia.
How do you pronounce "opossum"?
The IPA (International Phonetic Alphabet) transcription for "opossum" is /əˈpɒsəm/. 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 "opossum"?
Etymology tree Proto-Algonquian *wa·p- Proto-Algonquian *aθemwa Proto-Algonquian *wa·p-aʔθemwa Powhatan aposoumbor. English opossum From Powhatan aposoum (“white animal”), from Proto-Algonquian *wa·p-aʔθemwa (“white dog”); compare Ojibwe waabasim ... 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.

Using “opossum”

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

  • The one correct English spelling is O-P-O-S-S-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈpɒsəm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English 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