intovsithTell them apart

Quick tell: into is a preposition, ith is an adjective, so they fill different roles in a sentence.

Which to use

“into” is a preposition and “ith” is an adjective - they look or sound alike but fill different roles in a sentence.

#83
“into” frequency rank
#49,435
“ith” frequency rank
49518
confusion score

Side-by-Side Comparison

Feature into ith
Definition To or towards the inside of. Occurring at position i in a sequence.

Where the eye mixes into and ith

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

4 ch
into
3 ch
ith

Visual trap between into and ith

These two trip readers on the page rather than in the ear: into is /ˈɪn.tuː/ while ith is /aɪθ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (preposition vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 49518, derived from the frequency rank of both members and their visual similarity.

into is recorded at frequency rank #83, classified as aprep, pronounced /ˈɪn.tuː/. ith is at rank #49,435, tagged as anadj, pronounced /aɪθ/.

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 49518, this pair ranks #182,815 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of into vs ith

Shared letters: it. Private to "into": no. Private to "ith": h.

"into" · 4 letters · shape VCCV  ·  "ith" · 3 letters · shape VCC

Known mistypes of this pair

  • intoinnto · inot · intto · itno · nito

Frequently Asked Questions

Can "into" and "ith" be used interchangeably?
No - they are not even the same part of speech. "into" is a preposition and "ith" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "into" or "ith"?
"into" is the more common of the two: it sits at frequency rank #83 in our English list, against #49,435 for "ith". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "into" and "ith" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "into" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ith" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #182,815 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "into" and "ith" also get mixed up with nearby pairs, the highest-scored neighbour is "ISR vs ith". 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 #182,815 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