Oppenheimer

/ˈɒpənˌhaɪmər/

//ˈɒpənˌhaɪmər// name

By · According to Wiktionary data (CC BY-SA) ·

"oppenheimer" is a 11-letter English headword indexed on PlainSpell.

The verdict

“Oppenheimer” has 14 generated spelling variants in the English index at frequency #31,682. The variants make it a useful spelling check.

#31,682
frequency rank, English
15,494
“O” headwords
14
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A surname from German.

Key facts for Oppenheimer
PropertyValue
HeadwordOppenheimer
LanguageEnglish
Part of speechProper noun
IPA/ˈɒpənˌhaɪmər/
Letters11
Frequency rank#31,682
Misspellings tracked14
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “Oppenheimer” 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). Oppenheimer lands here:

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

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

A misspelling magnet

The generator records 14 spelling variants around Oppenheimer (IPA /ˈɒpənˌhaɪmər/), aproper noun. Corpus frequency is #31,682 among 15,494 “O” headwords. Dominant gloss: "A surname from German.".

Our generated misspelling index lists 14 likely wrong-spelling variants for Oppenheimer, with forms such as "openheimer", "opepnheimer", and "oppehneimer". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. 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: Borrowed from German Oppenheimer. The correct English form is Oppenheimer, spelled O-P-P-E-N-H-E-I-M-E-R.

Definition

  1. 1
    A surname from German.

Etymology

Borrowed from German Oppenheimer.

Common misspellings

Also misspelled as:

  • openheimer
  • opepnheimer
  • oppehneimer
  • oppenehimer
  • oppenheiemr
  • oppenheimerr
  • oppenheimmer
  • oppenheimre
  • oppenhemier
  • oppenhheimer
  • oppenhiemer
  • oppennheimer
  • oppneheimer
  • popenheimer

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Oppenheimer - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

openheimer1opepnheimer2oppehneimer2oppenehimer2oppenheiemr2oppenheimerr1oppenheimmer1oppenheimre2
Edit distance from "Oppenheimer"

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 "Oppenheimer"?
"Oppenheimer" is spelled O-P-P-E-N-H-E-I-M-E-R. The IPA pronunciation is /ˈɒpənˌhaɪmər/.
What does "Oppenheimer" mean?
As a proper noun, "Oppenheimer" means: A surname from German.
What are common misspellings of "Oppenheimer"?
Common misspellings include "openheimer", "opepnheimer", "oppehneimer", "oppenehimer", "oppenheiemr". The correct spelling is "Oppenheimer".
How do you pronounce "Oppenheimer"?
The IPA (International Phonetic Alphabet) transcription for "Oppenheimer" is /ˈɒpənˌhaɪmər/. 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 "Oppenheimer"?
Borrowed from German Oppenheimer. 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 “Oppenheimer”

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

  • The one correct English spelling is O-P-P-E-N-H-E-I-M-E-R - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɒpənˌhaɪmər/ (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

Same frequency band

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