lavvslayWhat's the difference?

Quick tell: lav is a noun, lay is a verb, so they fill different roles in a sentence.

Which to use

“lav” is a noun and “lay” is a verb - they look or sound alike but fill different roles in a sentence.

#48,859
“lav” frequency rank
#2,302
“lay” frequency rank
51161
confusion score

Side-by-Side Comparison

Feature lav lay
Definition Clipping of lavatory. To place down in a position of rest, or in a horizontal position.

Where the eye mixes lav and lay

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
lav
3 ch
lay

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: lav is /læv/ while lay is /leɪ/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - v in “lav” becomes y in “lay”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 51161, derived from the frequency rank of both members and their visual similarity.

lav is recorded at frequency rank #48,859, classified as anoun, pronounced /læv/. lay is at rank #2,302, tagged as averb, pronounced /leɪ/.

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 51161, this pair ranks #167,866 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lav vs lay

Shared letters: al. Private to "lav": v. Private to "lay": y.

"lav" · 3 letters · shape CVC  ·  "lay" · 3 letters · shape CVV

Frequently Asked Questions

Can "lav" and "lay" be used interchangeably?
No - they are not even the same part of speech. "lav" is a noun and "lay" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "lav" or "lay"?
"lay" is the more common of the two: it sits at frequency rank #2,302 in our English list, against #48,859 for "lav". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list