OCLC vs OCR, What's the Difference?

Which to use

“OCLC” and “OCR” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,437
“OCLC” frequency rank: #37,602
“OCR” frequency rank: 73039
confusion score

Side-by-Side Comparison

Feature	OCLC	OCR
Definition	Initialism of Online Computer Library Center (formerly Ohio College Library Center).	Initialism of Oxford, Cambridge & RSA (examination board).

Where the spellings diverge

Shared letters are muted; the letters that actually set OCLC and OCR apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch

OCLC

3 ch

OCR

Spelling & Dictionary Insight

OCLC and OCR are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 73039, derived from the frequency rank of both members and their visual similarity.

OCLC is recorded at frequency rank #35,437, classified as aname. OCR is at rank #37,602, tagged as aname.

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 73039, this pair ranks #40,939 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of OCLC vs OCR

Shared letters: co. Private to "OCLC": l. Private to "OCR": r.

"OCLC" · 4 letters · shape VCCC · "OCR" · 3 letters · shape VCC

Known mistypes of this pair

OCLC ← colc · occl · occlc · oclcc · ocllc · olcc

Frequency comparison

OCLC#35,437

OCR#37,602

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "OCLC" and "OCR" be used interchangeably?

No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "OCLC" or "OCR"?

"OCLC" is the more common of the two: it sits at frequency rank #35,437 in our English list, against #37,602 for "OCR". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering OCLC vs OCR

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “OCLC” entry
Browse more pairs most likely to be confused. Most confusable