obsessionvsofConfusable pair

Quick tell: obsession is a noun, of is a preposition, so they fill different roles in a sentence.

Which to use

“obsession” is a noun and “of” is a preposition - they look or sound alike but fill different roles in a sentence.

#38,319
“obsession” frequency rank
#324
“of” frequency rank
38643
confusion score

Side-by-Side Comparison

Feature obsession of
Definition die Besessenheit von

Letter map: obsession vs of

Shared letters muted; letters that set obsession and of apart highlighted. Shared run: 1.

9 ch
obsession
2 ch
of

Part-of-speech tell for obsession / of

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: obsession is anoun and ofapreposition. On the page they differ by 7 letter(s) in length. Our composite confusion score for this pair is 38643, derived from the frequency rank of both members and their visual similarity.

obsession is recorded at frequency rank #38,319, classified as anoun, pronounced […]. of is at rank #324, tagged as aprep, pronounced […].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 38643, this pair ranks #1,558,496 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of obsession vs of

Shared letters: o. Private to "obsession": beins. Private to "of": f.

"obsession" · 9 letters · shape VCCVCCVVC  ·  "of" · 2 letters · shape VC

Known mistypes of this pair

  • obsessionbosession · obbsession · obesssion · obsesion · obsesison · obsessino · obsessionn · obsessoin

Frequently Asked Questions

Can "obsession" and "of" be used interchangeably?
No - they are not even the same part of speech. "obsession" is a noun and "of" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "obsession" or "of"?
"of" is the more common of the two: it sits at frequency rank #324 in our German list, against #38,319 for "obsession". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "obsession" vs "of" is on the table, pick a follow-up below.

  • Full dictionary entry for "obsession" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "of" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,558,496 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "obsession" and "of" also get mixed up with nearby pairs, the highest-scored neighbour is "obsession vs puzzles". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,558,496 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list