aliasvsall'sWhich spelling fits?

Quick tell: alias is a adverb, all's is a contraction, so they fill different roles in a sentence.

Which to use

“alias” is an adverb and “all's” is a contraction - they look or sound alike but fill different roles in a sentence.

#15,744
“alias” frequency rank
#30,679
“all's” frequency rank
46423
confusion score

Side-by-Side Comparison

Feature alias all's
Definition Otherwise; at another time; in other circumstances; otherwise called; also known as; formerly known as. Contraction of all + is.

Letter map: alias vs all's

Shared letters muted; letters that set alias and all's apart highlighted. Shared run: 3.

5 ch
alias
5 ch
all's

Role in the sentence - alias and all's

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: alias is anadverb and all'sacontraction. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 46423, derived from the frequency rank of both members and their visual similarity.

alias is recorded at frequency rank #15,744, classified as anadv, pronounced /ˈeɪ.li.əs/. all's is at rank #30,679, tagged as acontraction.

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 46423, this pair ranks #211,870 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of alias vs all's

Shared letters: als. Private to "alias": i. Private to "all's": -.

"alias" · 5 letters · shape VCVVC  ·  "all's" · 4 letters · shape VCCC

Known mistypes of this pair

  • aliasailas · alais · aliass · alisa · allias · laias

Frequently Asked Questions

Do "alias" and "all's" mean the same thing in a sentence?
No - they are not even the same part of speech. "alias" is an adverb and "all's" a contraction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "alias" or "all's"?
"alias" is the more common of the two: it sits at frequency rank #15,744 in our English list, against #30,679 for "all's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "alias" vs "all's" is on the table, pick a follow-up below.

  • Full dictionary entry for "alias" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "all's" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #211,870 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "alias" and "all's" also get mixed up with nearby pairs, the highest-scored neighbour is "all's vs alls". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #211,870 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list