opp

/ɒp/

//ɒp// prep

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

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

The verdict

“opp” sits in 20 confusable pairs (corpus #35,442) as a preposition. The look-alike neighbours are the real trap.

#35,442
frequency rank, English
1,431
“O” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Abbreviation of opposite.

Corpus desk

Index EN-opp · opp · English

opp · rank #35,442 · 0 variants · 20 confusables

  • FREQ-MID #35,442
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH opacity

Nearest frequency peer: opacity (-1 rank slots)

Read with this headword: Spelling guide for this pattern

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.

Frequency neighbours of confusable “opp”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “opp” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

opp vs or
33% similar
opp vs OS
0% similar
opp vs oz
33% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for opp
PropertyValue
Headwordopp
LanguageEnglish
Part of speechPreposition
IPA/ɒp/
Letters3
Frequency rank#35,442
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “opp”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).opplands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “opacity” (#35,441), “otherworldly” (#35,443), “oneness” (#35,440). Among 1,431 “O” headwords, “opp” is #35,442. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for opp is neighbouring look-alikes ("or", "OS", …), not just typos; it is apreposition pronounced /ɒp/. Frequency #35,442 among 1,431 “O” headwords. Gloss: "Abbreviation of opposite.".

We couldn't generate a plausible misspelling set for opp, suggesting the orthography follows predictable English patterns. It also participates in 20 confusable-pair relationships, "or", "OS", "oz", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Wiktionary doesn't record an etymology for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is opp, spelled O-P-P.

Definition

  1. 1
    Abbreviation of opposite.

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 "opp"?
"opp" is spelled O-P-P. The IPA pronunciation is /ɒp/.
What does "opp" mean?
As a preposition, "opp" means: Abbreviation of opposite.
What words are commonly confused with "opp"?
"opp" is commonly confused with "or", "OS", "oz". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "opp"?
The IPA (International Phonetic Alphabet) transcription for "opp" is /ɒp/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "opp" come from?
"opp" is a English 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "opp", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

Nur#35,434nga#35,429qua#35,473sou#35,525

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list