ahavsauxWhat's the difference?

Quick tell: aha is a intj, aux is a contraction, so they fill different roles in a sentence.

Which to use

“aha” is an intj and “aux” is a contraction - they look or sound alike but fill different roles in a sentence.

#45,719
“aha” frequency rank
#32,511
“aux” frequency rank
78230
confusion score

Side-by-Side Comparison

Feature aha aux
Definition Ajá. Contracción de la preposición à y el artículo les; a las ; a los.

Where the spellings diverge

Shared letters are muted; the letters that actually set aha and aux apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
aha
3 ch
aux

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: aha is /ɑːˈhɑː/ while aux is /o/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (intj vs contraction), which is usually the fastest check. Our composite confusion score for this pair is 78230, derived from the frequency rank of both members and their visual similarity.

aha is recorded at frequency rank #45,719, classified as anintj, pronounced /ɑːˈhɑː/. aux is at rank #32,511, tagged as acontraction, pronounced /o/.

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 78230, this pair ranks #14,772 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of aha vs aux

Shared letters: a. Private to "aha": h. Private to "aux": ux.

"aha" · 3 letters · shape VCV  ·  "aux" · 3 letters · shape VVC

Frequency comparison

aha#45,719
aux#32,511

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "aha" and "aux" be used interchangeably?
No - they are not even the same part of speech. "aha" is an intj and "aux" a contraction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "aha" or "aux"?
"aux" is the more common of the two: it sits at frequency rank #32,511 in our Spanish list, against #45,719 for "aha". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering aha vs aux

The fastest way to pick the right one every time.

  • Check the role first: if you need an intj, it's “aha”; for a contraction, it's “aux”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “aha” 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