quasi vs quay, What's the Difference?

Which to use

“quasi” is an adjective and “quay” is a noun - they look or sound alike but fill different roles in a sentence.

#15,250
“quasi” frequency rank: #20,746
“quay” frequency rank: 35996
confusion score

Side-by-Side Comparison

Feature	quasi	quay
Definition	Resembling or having a likeness to the named thing.	A stone or concrete structure on navigable water used for loading and unloading vessels; a wharf.

Where the spellings diverge

Shared letters are muted; the letters that actually set quasi and quay apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch

quasi

4 ch

quay

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: quasi is /ˈkweɪzaɪ/ while quay is /kiː/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35996, derived from the frequency rank of both members and their visual similarity.

quasi is recorded at frequency rank #15,250, classified as anadj, pronounced /ˈkweɪzaɪ/. quay is at rank #20,746, tagged as anoun, pronounced /kiː/.

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 35996, this pair ranks #307,122 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of quasi vs quay

Shared letters: aqu. Private to "quasi": is. Private to "quay": y.

"quasi" · 5 letters · shape CVVCV · "quay" · 4 letters · shape CVVV

Known mistypes of this pair

quasi ← qausi · qquasi · quais · quassi · qusai · uqasi
quay ← qauy · qquay · quayy · quya · uqay

Frequency comparison

quasi#15,250

quay#20,746

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "quasi" and "quay" be used interchangeably?

No - they are not even the same part of speech. "quasi" is an adjective and "quay" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "quasi" or "quay"?

"quasi" is the more common of the two: it sits at frequency rank #15,250 in our English list, against #20,746 for "quay". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering quasi vs quay

The fastest way to pick the right one every time.

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