thenvsthisWhat's the difference?

Quick tell: then is a adverb, this is a pronoun, so they fill different roles in a sentence.

Which to use

“then” is an adverb and “this” is a pronoun - they look or sound alike but fill different roles in a sentence.

#17,149
“then” frequency rank
#2,559
“this” frequency rank
19708
confusion score

Side-by-Side Comparison

Feature then this
Definition Bezug zu einem im Text vorher genannten Zeitpunkt in der Nähe

Where the eye mixes then and this

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

4 ch
then
4 ch
this

Visual trap between then and this

These two trip readers on the page rather than in the ear: then is [ðɛn] while this is [ðɪs]. 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 (adverb vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 19708, derived from the frequency rank of both members and their visual similarity.

then is recorded at frequency rank #17,149, classified as anadv, pronounced [ðɛn]. this is at rank #2,559, tagged as apron, pronounced [ðɪs].

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 19708, this pair ranks #1,905,474 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of then vs this

Shared letters: ht. Private to "then": en. Private to "this": is.

"then" · 4 letters · shape CCVC  ·  "this" · 4 letters · shape CCVC

Known mistypes of this pair

  • thenhten · tehn · thenn · thhen · thne · tthen
  • thishtis · thhis · thiss · thsi · tihs · tthis

Frequently Asked Questions

Can "then" and "this" be used interchangeably?
No - they are not even the same part of speech. "then" is an adverb and "this" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "then" or "this"?
"this" is the more common of the two: it sits at frequency rank #2,559 in our German list, against #17,149 for "then". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "then" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "this" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,905,474 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "then" and "this" also get mixed up with nearby pairs, the highest-scored neighbour is "then vs thy". 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 #1,905,474 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list