ODP

noun

"odp" is a 3-letter English headword indexed on PlainSpell.

The verdict

“ODP” is uncommon English (frequency #86,586 among 15,494 “O” headwords), classed as a noun. The kind of spelling people second-guess.

#86,586
frequency rank, English
15,494
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of orbital defense platform.

Key facts for ODP
PropertyValue
HeadwordODP
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#86,586
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “ODP” 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). ODP lands here:

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

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

Rare enough to double-check

ODP is uncommon English at frequency #86,586 among 15,494 “O” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

No misspelling variants are generated for ODP in our index, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Our source data has no etymology on file for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is ODP, spelled O-D-P.

Definition

  1. 1
    Initialism of orbital defense platform.
  2. 2
    Initialism of observer design pattern.
  3. 3
    Initialism of origin decision point.

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 "ODP"?
"ODP" is spelled O-D-P.
What does "ODP" mean?
As a noun, "ODP" means: Initialism of orbital defense platform.
What language does "ODP" come from?
"ODP" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 “ODP”

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

  • The one correct English spelling is O-D-P - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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