quavsquayWhat's the difference?

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

Which to use

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

#35,473
“qua” frequency rank
#20,746
“quay” frequency rank
56219
confusion score

Side-by-Side Comparison

Feature qua quay
Definition as; in the capacity of; acting as 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 qua and quay apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

3 ch
qua
4 ch
quay

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: qua is /kwɑː/ while quay is /kiː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “qua” sits inside “quay”, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 56219, derived from the frequency rank of both members and their visual similarity.

qua is recorded at frequency rank #35,473, classified as aprep, pronounced /kwɑː/. 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 56219, this pair ranks #127,849 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of qua vs quay

Shared letters: aqu. Private to "qua": -. Private to "quay": y.

"qua" · 3 letters · shape CVV  ·  "quay" · 4 letters · shape CVVV

Known mistypes of this pair

  • quayqauy · qquay · quayy · quya · uqay

Frequency comparison

qua#35,473
quay#20,746

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "qua" and "quay" be used interchangeably?
No - they are not even the same part of speech. "qua" is a preposition and "quay" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "qua" or "quay"?
"quay" is the more common of the two: it sits at frequency rank #20,746 in our English list, against #35,473 for "qua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering qua vs quay

The fastest way to pick the right one every time.

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

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

Source: FrequencyWords open word-frequency list