age vs AU, What's the Difference?

Which to use

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

#475
“age” frequency rank: #6,867
“AU” frequency rank: 7342
confusion score

Side-by-Side Comparison

Feature	age	AU
Definition	The amount of time that some being has been alive, or that some thing has been in existence, as measured from its birth or origin until the present or until some other given reference point. (Often measured in number of years; alternatively in months, days, hours, etc.; see also the usage notes)	Initialism of alopecia universalis.

Letter map: age vs AU

Shared letters muted; letters that set age and AU apart highlighted. Shared run: 1.

3 ch

age

2 ch

Pair insight - age / AU

age and AU 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 7342, derived from the frequency rank of both members and their visual similarity.

age is recorded at frequency rank #475, classified as anoun, pronounced /eɪd͡ʒ/. AU is at rank #6,867, tagged as anoun.

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 7342, this pair ranks #507,533 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of age vs AU

Shared letters: a. Private to "age": eg. Private to "AU": u.

"age" · 3 letters · shape VCV · "AU" · 2 letters · shape VV

Frequently Asked Questions

Do "age" and "AU" mean the same thing in a sentence?

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, "age" or "AU"?

"age" is the more common of the two: it sits at frequency rank #475 in our English list, against #6,867 for "AU". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Done with this confusable. These links stay specific to "age" and "AU".

Full dictionary entry for "age" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "AU" - compare definitions side by side with the headword page. Word entry
This pair ranks #507,533 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"age" and "AU" also get mixed up with nearby pairs, the highest-scored neighbour is "amb vs AU". Nearby pair

Confusion rank #507,533 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.