IBM vs IQ, What's the Difference?

Which to use

“IBM” is a name and “IQ” is a noun - they look or sound alike but fill different roles in a sentence.

#14,283
“IBM” frequency rank: #47,975
“IQ” frequency rank: 62258
confusion score

Side-by-Side Comparison

Feature	IBM	IQ
Definition	Société américaine d'informatique, connue du grand public pour avoir créé les premiers PC.	QI, quotient intellectuel.

Where the spellings diverge

Shared letters are muted; the letters that actually set IBM and IQ apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch

IBM

2 ch

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: IBM is \aɪˈbiːˈɛm\ while IQ is \iːˈkuː\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 62258, derived from the frequency rank of both members and their visual similarity.

IBM is recorded at frequency rank #14,283, classified as aname, pronounced \aɪˈbiːˈɛm\. IQ is at rank #47,975, tagged as anoun, pronounced \iːˈkuː\.

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 62258, this pair ranks #88,038 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of IBM vs IQ

Shared letters: i. Private to "IBM": bm. Private to "IQ": q.

"IBM" · 3 letters · shape VCC · "IQ" · 2 letters · shape VC

Frequency comparison

IBM#14,283

IQ#47,975

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "IBM" and "IQ" be used interchangeably?

No - they are not even the same part of speech. "IBM" is a name and "IQ" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "IBM" or "IQ"?

"IBM" is the more common of the two: it sits at frequency rank #14,283 in our French list, against #47,975 for "IQ". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering IBM vs IQ

The fastest way to pick the right one every time.

Check the role first: if you need a name, it's “IBM”; for a noun, it's “IQ”.
See each word in full, definition, IPA, etymology and its other confusables. Full “IBM” entry
Browse more pairs most likely to be confused. Most confusable