OPC

noun

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

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

The verdict

“OPC” is uncommon English (frequency #54,986 among 15,494 “O” headwords), classed as a noun. The kind of spelling people second-guess.

#54,986
frequency rank, English
15,494
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Abbreviation of oligomeric proanthocyanidin.

Key facts for OPC
PropertyValue
HeadwordOPC
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#54,986
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “OPC” 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). OPC 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

OPC is uncommon English at frequency #54,986 among 15,494 “O” headwords, classed as anoun. Rarity is why readers land here mid-draft. 5 senses are on record.

No generated misspelling entries exist for OPC in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Abbreviation. The correct English form is OPC, spelled O-P-C.

Definition

  1. 1
    Abbreviation of oligomeric proanthocyanidin.
  2. 2
    Abbreviation of oropharyngeal cancer.
  3. 3
    Initialism of ordinary portland cement.
  4. 4
    Initialism of offshore patrol craft
  5. 5
    Initialism of offshore patrol cutter

Etymology

Abbreviation.

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 "OPC"?
"OPC" is spelled O-P-C.
What does "OPC" mean?
As a noun, "OPC" means: Abbreviation of oligomeric proanthocyanidin.
What is the origin of the word "OPC"?
Abbreviation. 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 “OPC”

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

  • The one correct English spelling is O-P-C - 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